{"title":"Pneumatic Quick Couplers","description":"\u003cp\u003ePneumatic quick couplers connect and disconnect air lines in one quick motion, no tools required. This collection covers the full range of air quick couplers and plugs across every interchange, from miniature 2 Series to industrial body sizes, in steel, brass, and stainless. Filter by series, body size, thread, and material to find the exact coupler or plug your air system needs.\u003c\/p\u003e","products":[{"product_id":"foster-02-2-2-series","title":"Foster 02-2, 1\/8\" 2 Series Plug x 1\/8\" Hose ID, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e02-2\u003c\/strong\u003e is a Steel 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 02-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45461897183279,"sku":"FOST 02-2 (1)","price":2.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2302-2-series","title":"Foster 2302, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2302\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2302\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463466704943,"sku":"FOST 2302 (1)","price":8.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2302-2-series","title":"Foster BL2302, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2302\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2302\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463467163695,"sku":"FOST BL2302 (1)","price":14.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2302h-2-series","title":"Foster 2302H, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, Heavy-Duty Brass, Steel (Heat)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2302H\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2302H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, heat)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Heat service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, heat).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463467556911,"sku":"FOST 2302H (1)","price":9.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2302hw-2-series","title":"Foster 2302HW, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, Heavy-Duty Brass, Stainless (Hot Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2302HW\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2302HW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, hot water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Hot Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, hot water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463467819055,"sku":"FOST 2302HW (1)","price":10.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2302s-s-2-series","title":"Foster 2302S\/S, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, 303 Stainless","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2302S\/S\u003c\/strong\u003e is a 303 Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2302S\/S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 303 Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e303 stainless construction\u003c\/strong\u003e — which means superior corrosion resistance for washdown, marine, and chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463468146735,"sku":"FOST 2302S\/S (1)","price":26.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2302s-s-2-series","title":"Foster BL2302S\/S, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, 303 Stainless (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2302S\/S\u003c\/strong\u003e is a 303 Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2302S\/S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 303 Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e303 stainless construction\u003c\/strong\u003e — which means superior corrosion resistance for washdown, marine, and chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463468474415,"sku":"FOST BL2302S\/S (1)","price":30.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2302s-sh-2-series","title":"Foster 2302S\/SH, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, 303 Stainless (Heat)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2302S\/SH\u003c\/strong\u003e is a 303 Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2302S\/SH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 303 Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, heat)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Heat service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e303 stainless construction\u003c\/strong\u003e — which means superior corrosion resistance for washdown, marine, and chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, heat).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463469162543,"sku":"FOST 2302S\/SH (1)","price":28.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2302w-2-series","title":"Foster 2302W, 1\/8\" 2 Series Coupler x 1\/8\" Female NPT, Heavy-Duty Brass, Stainless (Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2302W\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2302W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N, water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile) (Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N, water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it good for water lines?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Brass\/Stainless body for water and coolant service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463469621295,"sku":"FOST 2302W (1)","price":10.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2702-2-series","title":"Foster 2702, 1\/8\" 2 Series Coupler x 1\/4\" Female NPT, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2702\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463469883439,"sku":"FOST 2702 (1)","price":9.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2702-2-series","title":"Foster BL2702, 1\/8\" 2 Series Coupler x 1\/4\" Female NPT, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2702\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463470211119,"sku":"FOST BL2702 (1)","price":12.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2702h-2-series","title":"Foster 2702H, 1\/8\" 2 Series Coupler x 1\/4\" Female NPT, Heavy-Duty Brass, Steel (Heat)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2702H\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2702H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, heat)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Heat service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, heat).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463470506031,"sku":"FOST 2702H (1)","price":10.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2702hw-2-series","title":"Foster 2702HW, 1\/8\" 2 Series Coupler x 1\/4\" Female NPT, Heavy-Duty Brass, Stainless (Hot Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2702HW\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2702HW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, hot water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Hot Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, hot water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463470669871,"sku":"FOST 2702HW (1)","price":11.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2202-2-series","title":"Foster 2202, 1\/8\" 2 Series Coupler x 1\/8\" Male NPT, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2202\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2202\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463470932015,"sku":"FOST 2202 (1)","price":8.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2202-2-series","title":"Foster BL2202, 1\/8\" 2 Series Coupler x 1\/8\" Male NPT, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2202\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2202\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463471521839,"sku":"FOST BL2202 (1)","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2202s-s-2-series","title":"Foster 2202S\/S, 1\/8\" 2 Series Coupler x 1\/8\" Male NPT, 303 Stainless","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2202S\/S\u003c\/strong\u003e is a 303 Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2202S\/S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 303 Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e303 stainless construction\u003c\/strong\u003e — which means superior corrosion resistance for washdown, marine, and chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463471849519,"sku":"FOST 2202S\/S (1)","price":30.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2202s-s-2-series","title":"Foster BL2202S\/S, 1\/8\" 2 Series Coupler x 1\/8\" Male NPT, 303 Stainless (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2202S\/S\u003c\/strong\u003e is a 303 Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2202S\/S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 303 Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e303 stainless construction\u003c\/strong\u003e — which means superior corrosion resistance for washdown, marine, and chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463472439343,"sku":"FOST BL2202S\/S (1)","price":30.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2202h-2-series","title":"Foster 2202H, 1\/8\" 2 Series Coupler x 1\/8\" Male NPT, Heavy-Duty Brass, Steel (Heat)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2202H\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2202H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, heat)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Heat service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, heat).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463472767023,"sku":"FOST 2202H (1)","price":10.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2202s-2-series","title":"Foster 2202S, 1\/8\" 2 Series Coupler x 1\/8\" Male NPT, Heavy-Duty Brass, Stainless (Steam)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2202S\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2202S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (EPDM, steam)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e EPDM (Steam service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPDM seal\u003c\/strong\u003e — which means compatibility with steam service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a EPDM seal rated -40°F to +300°F (EPDM, steam).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it suitable for steam?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses an EPDM seal chosen for steam compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463473520687,"sku":"FOST 2202S (1)","price":11.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2202w-2-series","title":"Foster 2202W, 1\/8\" 2 Series Coupler x 1\/8\" Male NPT, Heavy-Duty Brass, Stainless (Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2202W\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2202W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N, water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile) (Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N, water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it good for water lines?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Brass\/Stainless body for water and coolant service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463474241583,"sku":"FOST 2202W (1)","price":11.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2402-2-series","title":"Foster 2402, 1\/8\" 2 Series Coupler x 1\/4\" Male NPT, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2402\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2402\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463474667567,"sku":"FOST 2402 (1)","price":9.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2402-2-series","title":"Foster BL2402, 1\/8\" 2 Series Coupler x 1\/4\" Male NPT, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2402\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2402\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463474962479,"sku":"FOST BL2402 (1)","price":13.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2402h-2-series","title":"Foster 2402H, 1\/8\" 2 Series Coupler x 1\/4\" Male NPT, Heavy-Duty Brass, Steel (Heat)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2402H\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2402H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, heat)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Heat service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, heat).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463475519535,"sku":"FOST 2402H (1)","price":12.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2022-2-series","title":"Foster 2022, 1\/8\" 2 Series Coupler x 1\/8\" Hose ID, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2022\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2022\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463476076591,"sku":"FOST 2022 (1)","price":8.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2022-2-series","title":"Foster BL2022, 1\/8\" 2 Series Coupler x 1\/8\" Hose ID, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2022\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2022\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463476469807,"sku":"FOST BL2022 (1)","price":12.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2022w-2-series","title":"Foster 2022W, 1\/8\" 2 Series Coupler x 1\/8\" Hose ID, Heavy-Duty Brass, Stainless (Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2022W\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2022W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N, water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile) (Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N, water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it good for water lines?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Brass\/Stainless body for water and coolant service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463477125167,"sku":"FOST 2022W (1)","price":10.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2032-2-series","title":"Foster 2032, 1\/8\" 2 Series Coupler x 3\/16\" Hose ID, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2032\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2032\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/16\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463477747759,"sku":"FOST 2032 (1)","price":9.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2032-2-series","title":"Foster BL2032, 1\/8\" 2 Series Coupler x 3\/16\" Hose ID, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2032\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2032\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/16\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463478960175,"sku":"FOST BL2032 (1)","price":12.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2032hw-2-series","title":"Foster 2032HW, 1\/8\" 2 Series Coupler x 3\/16\" Hose ID, Heavy-Duty Brass, Stainless (Hot Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2032HW\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2032HW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/16\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, hot water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Hot Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, hot water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463479255087,"sku":"FOST 2032HW (1)","price":11.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2032s-2-series","title":"Foster 2032S, 1\/8\" 2 Series Coupler x 3\/16\" Hose ID, Heavy-Duty Brass, Stainless (Steam)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2032S\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2032S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/16\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (EPDM, steam)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e EPDM (Steam service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPDM seal\u003c\/strong\u003e — which means compatibility with steam service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a EPDM seal rated -40°F to +300°F (EPDM, steam).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it suitable for steam?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses an EPDM seal chosen for steam compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463479451695,"sku":"FOST 2032S (1)","price":11.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2042-2-series","title":"Foster 2042, 1\/8\" 2 Series Coupler x 1\/4\" Hose ID, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2042\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2042\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463479910447,"sku":"FOST 2042 (1)","price":9.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-bl2042-2-series","title":"Foster BL2042, 1\/8\" 2 Series Coupler x 1\/4\" Hose ID, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBL2042\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL2042\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463480205359,"sku":"FOST BL2042 (1)","price":32.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2042hw-2-series","title":"Foster 2042HW, 1\/8\" 2 Series Coupler x 1\/4\" Hose ID, Heavy-Duty Brass, Stainless (Hot Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e2042HW\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2042HW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, hot water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Hot Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, hot water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463480369199,"sku":"FOST 2042HW (1)","price":28.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-sj8-2-2-series","title":"Foster SJ8-2, 1\/8\" 2 Series Coupler x 1\/4\" Plastic Tube, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eSJ8-2\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SJ8-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Plastic Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463480696879,"sku":"FOST SJ8-2 (1)","price":9.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-blsj8-2-2-series","title":"Foster BLSJ8-2, 1\/8\" 2 Series Coupler x 1\/4\" Plastic Tube, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBLSJ8-2\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BLSJ8-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Plastic Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463481221167,"sku":"FOST BLSJ8-2 (1)","price":13.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-sj8-2m-2-series","title":"Foster SJ8-2M, 1\/8\" 2 Series Coupler x 1\/4\" Soft Metal Tube, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eSJ8-2M\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SJ8-2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Soft Metal Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463481450543,"sku":"FOST SJ8-2M (1)","price":9.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-sj8-2s-s-2-series","title":"Foster SJ8-2S\/S, 1\/8\" 2 Series Coupler x 1\/4\" Tube, 303 Stainless","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eSJ8-2S\/S\u003c\/strong\u003e is a 303 Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SJ8-2S\/S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 303 Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e303 stainless construction\u003c\/strong\u003e — which means superior corrosion resistance for washdown, marine, and chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463482073135,"sku":"FOST SJ8-2S\/S (1)","price":36.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-sj8p-2-2-series","title":"Foster SJ8P-2, 1\/8\" 2 Series Coupler x 1\/4\" Plastic Tube, Panel Mount, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eSJ8P-2\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SJ8P-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Plastic Tube, Panel Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463482630191,"sku":"FOST SJ8P-2 (1)","price":11.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-blsj8p-2-2-series","title":"Foster BLSJ8P-2, 1\/8\" 2 Series Coupler x 1\/4\" Plastic Tube, Panel Mount, Heavy-Duty Brass, Steel (Ball Lock)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eBLSJ8P-2\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BLSJ8P-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Plastic Tube, Panel Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Lock option\u003c\/strong\u003e — which means the sleeve rotates to lock after connection, guarding against accidental disconnect and hose-whip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463483154479,"sku":"FOST BLSJ8P-2 (1)","price":15.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-sj8p-2hw-2-series","title":"Foster SJ8P-2HW, 1\/8\" 2 Series Coupler x 1\/4\" Plastic Tube, Panel Mount, Heavy-Duty Brass, Stainless (Hot Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eSJ8P-2HW\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SJ8P-2HW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Plastic Tube, Panel Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +300°F (Viton, hot water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Viton (Hot Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton seal\u003c\/strong\u003e — which means reliable sealing in elevated-temperature and hot-fluid service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Viton seal rated -40°F to +300°F (Viton, hot water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle hot air or hot water?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Viton seal selected for elevated-temperature and hot-fluid service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463483449391,"sku":"FOST SJ8P-2HW (1)","price":14.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-sj8p-2w-2-series","title":"Foster SJ8P-2W, 1\/8\" 2 Series Coupler x 1\/4\" Plastic Tube, Panel Mount, Heavy-Duty Brass, Stainless (Water)","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eSJ8P-2W\u003c\/strong\u003e is a Heavy-Duty Brass, Stainless 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SJ8P-2W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Plastic Tube, Panel Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N, water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile) (Water service)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N, water).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it good for water lines?\u003c\/strong\u003e\u003cbr\u003eYes — this variant uses a Brass\/Stainless body for water and coolant service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463483711535,"sku":"FOST SJ8P-2W (1)","price":14.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-sj8p-2m-2-series","title":"Foster SJ8P-2M, 1\/8\" 2 Series Coupler x 1\/4\" Soft Metal Tube, Panel Mount, Heavy-Duty Brass, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003eSJ8P-2M\u003c\/strong\u003e is a Heavy-Duty Brass, Steel 1\/8\" coupler from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series plugs. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SJ8P-2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Coupler, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Soft Metal Tube, Panel Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-Duty Brass, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance where it contacts media plus a hardened, long-wearing sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless ball locking\u003c\/strong\u003e — which means a large number of captive balls spread the load for positive, swiveling connections that resist wear and reduce hose torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series plug of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it connect?\u003c\/strong\u003e\u003cbr\u003eThe 2 Series socket uses a manual pull sleeve — retract the sleeve by hand to connect or release the plug. The socket is valved (one-way shut-off), so install it on the pressure side; the supply line seals when the plug is removed.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this coupler with a matching Foster 1\/8\" 2 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463483940911,"sku":"FOST SJ8P-2M (1)","price":11.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-22-2-2-series","title":"Foster 22-2, 1\/8\" 2 Series Plug x 1\/8\" Male NPT, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e22-2\u003c\/strong\u003e is a Steel 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 22-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463484170287,"sku":"FOST 22-2 (1)","price":2.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-22-2b-2-series","title":"Foster 22-2B, 1\/8\" 2 Series Plug x 1\/8\" Male NPT, Brass","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e22-2B\u003c\/strong\u003e is a Brass 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 22-2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463484694575,"sku":"FOST 22-2B (1)","price":3.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-22-2s-s-2-series","title":"Foster 22-2S\/S, 1\/8\" 2 Series Plug x 1\/8\" Male NPT, 303 Stainless","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e22-2S\/S\u003c\/strong\u003e is a 303 Stainless 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 22-2S\/S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 303 Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e303 Stainless construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463484858415,"sku":"FOST 22-2S\/S (1)","price":4.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-24-2-2-series","title":"Foster 24-2, 1\/8\" 2 Series Plug x 1\/4\" Male NPT, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e24-2\u003c\/strong\u003e is a Steel 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 24-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463485022255,"sku":"FOST 24-2 (1)","price":3.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-23-2-2-series","title":"Foster 23-2, 1\/8\" 2 Series Plug x 1\/8\" Female NPT, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e23-2\u003c\/strong\u003e is a Steel 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 23-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463485481007,"sku":"FOST 23-2 (1)","price":2.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-27-2-2-series","title":"Foster 27-2, 1\/8\" 2 Series Plug x 1\/4\" Female NPT, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e27-2\u003c\/strong\u003e is a Steel 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 27-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463486136367,"sku":"FOST 27-2 (1)","price":4.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-03-2-2-series","title":"Foster 03-2, 1\/8\" 2 Series Plug x 3\/16\" Hose ID, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e03-2\u003c\/strong\u003e is a Steel 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 03-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/16\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463486464047,"sku":"FOST 03-2 (1)","price":3.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-04-2-2-series","title":"Foster 04-2, 1\/8\" 2 Series Plug x 1\/4\" Hose ID, Steel","description":"\u003cp\u003eDependable, leak-free connections for air and light fluid lines. The Foster \u003cstrong\u003e04-2\u003c\/strong\u003e is a Steel 1\/8\" plug from the proven Foster 2 Series — a miniature, high-flow quick coupler only 5\/8\" in diameter (socket ~1 oz) that interchanges with Foster 1\/8\" 2 Series couplers. Built in the USA for shops, hobbyists, and OEMs that need a compact coupler without giving up flow or durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 04-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/8\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/8\" Plug, Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 300 PSIG; vacuum to 27\" Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +250°F (Buna-N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction\u003c\/strong\u003e — which means it withstands repeated high-pressure cycling without deforming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision leak-proof seal\u003c\/strong\u003e — which means bubble-tight performance within the rated working pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Way Shut-Off\u003c\/strong\u003e — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSnap it on and the connection just holds — no drips, no hiss, no fighting a stuck sleeve. Drop it into a tight panel or a crowded bench and the compact 5\/8\" body stays out of the way while still flowing like a larger coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eIt mates with any Foster 1\/8\" 2 Series coupler of the same body size. The 1\/8\" 2 Series is Foster’s miniature industrial profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure and temperature is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG working pressure (vacuum to 27\" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F (Buna-N).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 2 Series is a miniature air\/fluid coupler for compressed air, water, and similar low-pressure media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the plug go on?\u003c\/strong\u003e\u003cbr\u003eThe plug is un-valved and exhausts the downstream line at disconnect, so the matching valved socket installs on the pressure side.\u003c\/p\u003e\u003cp\u003eIdeal for lightweight, low-flow applications — airbrushes, small pneumatic systems, hobby and craft tools, instrument air, and compact shop setups. Pair this plug with a matching Foster 1\/8\" 2 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Made in the USA by Foster Manufacturing (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45463486922799,"sku":"FOST 04-2 (1)","price":6.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"}],"url":"https:\/\/www.hpcouplers.com\/en-mx\/collections\/pneumatic-quick-couplers.oembed?page=10","provider":"hpcouplers","version":"1.0","type":"link"}