{"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":"m-style-plug-1-4-body-x-1-4-male-npt-thread","title":"Foster 10-3B, 3 Series, Industrial Plug, 1\/4\" Male NPT, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e10-3B\u003c\/strong\u003e is a Brass 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 10-3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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 Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":30167774529,"sku":"10-3B (1)","price":3.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/10-3B_1pcHPC.jpg?v=1522778203"},{"product_id":"m-style-industrial-plug-1-4-body-x-1-4-female-npt-thread-brass","title":"Foster 11-3B, 3 Series, Industrial Plug, 1\/4\" Female NPT, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e11-3B\u003c\/strong\u003e is a Brass 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 11-3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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 Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":30272797761,"sku":"11-3B (1)","price":3.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/11-3B_1pcHPC.jpg?v=1522947827"},{"product_id":"m-style-industrial-plug-1-4-body-x-1-4-male-npt-thread-steel","title":"Foster 10-3, 3 Series, Industrial Plug, 1\/4\" Male NPT, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e10-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 10-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":30933575809,"sku":"10-3 (1)","price":1.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/10-3_1pcHPC-NEW.jpg?v=1522778800"},{"product_id":"m-style-industrial-coupler-1-4-body-x-1-4-male-npt-thread-brass-steel","title":"Foster 3003, 3 Series, Industrial Coupler, Manual, 1\/4\" Female NPT, Brass, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e3003\u003c\/strong\u003e is a Brass\/Steel 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\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 Brass\/Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Manual pull sleeve to connect\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\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\u003eManual pull sleeve\u003c\/strong\u003e — which means a positive, deliberate connection; retract the sleeve by hand to connect or release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance plus a hardened, long-wearing sleeve.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this coupler with a matching 1\/4\" 3 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":31612941057,"sku":"3003 (1)","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/3003_1pcHPC.jpg?v=1524171062"},{"product_id":"m-style-industrial-coupler-1-4-body-x-1-4-male-npt-thread-brass-steel-3","title":"Foster 3103, 3 Series, Industrial Coupler, Manual, 1\/4\" Male NPT, Brass, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e3103\u003c\/strong\u003e is a Brass\/Steel 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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The Foster \u003cstrong\u003e3003GS\u003c\/strong\u003e is a Steel 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3003GS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\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\u003eOperation:\u003c\/strong\u003e Automatic, USA-made slim profile (compact push-to-connect socket)\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\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\u003eAutomatic slim profile\u003c\/strong\u003e — which means a compact, USA-made automatic socket that connects with a simple push, ideal where space is tight.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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The Foster \u003cstrong\u003e3003GB\u003c\/strong\u003e is a Brass 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3003GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\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 Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic, USA-made slim profile (compact push-to-connect socket)\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\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\u003eAutomatic slim profile\u003c\/strong\u003e — which means a compact, USA-made automatic socket that connects with a simple push, ideal where space is tight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass construction\u003c\/strong\u003e — which means corrosion resistance and smooth, reliable operation.\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 — clean airflow, no drips, no hiss. 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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. 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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":7097701793839,"sku":"03-2 (1)","price":3.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/03-2_1pcHPC.jpg?v=1542868869"},{"product_id":"2-series-industrial-plug-1-4-hose-barb-steel","title":"Foster 04-2, 2 Series, Industrial Plug, 1\/4\" Hose Barb, 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":7098091733039,"sku":"04-2 (1)","price":6.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/04-2_1pcHPC.jpg?v=1542868685"},{"product_id":"2-series-industrial-plug-1-8-male-npt-steel","title":"Foster 22-2, 2 Series, Industrial Plug, 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. 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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. 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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. 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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. 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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":7098175455279,"sku":"23-2 (1)","price":2.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/23-2_1pcHPC.jpg?v=1542868571"},{"product_id":"2-series-industrial-plug-1-4-male-npt-steel-1","title":"Foster 24-2, 2 Series, Industrial Plug, 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":7098202390575,"sku":"24-2 (1)","price":3.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/24-2_1pcHPC.jpg?v=1542868674"},{"product_id":"2-series-industrial-plug-1-4-female-npt-steel","title":"Foster 27-2, 2 Series, Industrial Plug, 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":7098231062575,"sku":"27-2 (1)","price":4.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/27-2_1pcHPC.jpg?v=1542868661"},{"product_id":"2-series-industrial-coupler-1-8-hose-barb-brass-steel","title":"Foster 2022, 2 Series, Industrial Coupler, Manual, 1\/8\" Hose Barb, 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. 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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. 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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. 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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 PJ8-2\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\" 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 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. 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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. 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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. 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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. 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Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 17-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7106384363567,"sku":"17-3 (1)","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/17-3_HPC_fc3802c6-bff0-4362-9411-e889263ed3d9.jpg?v=1521658565"},{"product_id":"3-series-industrial-plug-1-4-female-npt-steel","title":"Foster 11-3, 3 Series, Industrial Plug, 1\/4\" Female NPT, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e11-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 11-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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The Foster \u003cstrong\u003e12-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 12-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7107147956271,"sku":"12-3 (1)","price":2.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/12-3_1pcHPC.jpg?v=1522780553"},{"product_id":"3-series-industrial-plug-1-8-female-npt-steel","title":"Foster 13-3, 3 Series, Industrial Plug, 1\/8\" Female NPT, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e13-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 13-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7107158474799,"sku":"13-3 (1)","price":2.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/13-3_1pcHPC.jpg?v=1522356318"},{"product_id":"3-series-industrial-plug-1-8-female-npt-brass","title":"Foster 13-3B, 3 Series, Industrial Plug, 1\/8\" Female NPT, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e13-3B\u003c\/strong\u003e is a Brass 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 13-3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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 Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7107172270127,"sku":"13-3B (1)","price":4.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/13-3B_1pcHPC.jpg?v=1524851673"},{"product_id":"3-series-industrial-plug-3-8-male-npt-steel","title":"Foster 14-3, 3 Series, Industrial Plug, 3\/8\" Male NPT, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e14-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 14-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7107188424751,"sku":"14-3 (1)","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/14-3_1pcHPC.jpg?v=1522257858"},{"product_id":"3-series-industrial-plug-3-8-hose-barb-brass","title":"Foster 17-3B, 3 Series, Industrial Plug, 3\/8\" Hose Barb, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e17-3B\u003c\/strong\u003e is a Brass 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 17-3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/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 Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7118776696879,"sku":"17-3B (1)","price":5.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/17-3Bhpc.jpg?v=1522253400"},{"product_id":"3-series-industrial-plug-5-16-hose-barb-steel","title":"Foster 165-3, 3 Series, Industrial Plug, 5\/16\" Hose Barb, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e165-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 165-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 5\/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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7118912847919,"sku":"165-3 (1)","price":6.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/165-3_1pcHPC.jpg?v=1522087652"},{"product_id":"3-series-industrial-coupler-3-8-female-npt-brass-steel","title":"Foster 3203, 3 Series, Industrial Coupler, Manual, 3\/8\" Female NPT, Brass, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e3203\u003c\/strong\u003e is a Brass\/Steel 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3203\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/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 Brass\/Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Manual pull sleeve to connect\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\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\u003eManual pull sleeve\u003c\/strong\u003e — which means a positive, deliberate connection; retract the sleeve by hand to connect or release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance plus a hardened, long-wearing sleeve.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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The Foster \u003cstrong\u003e3303\u003c\/strong\u003e is a Brass\/Steel 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/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\/Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Manual pull sleeve to connect\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\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\u003eManual pull sleeve\u003c\/strong\u003e — which means a positive, deliberate connection; retract the sleeve by hand to connect or release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance plus a hardened, long-wearing sleeve.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this coupler with a matching 1\/4\" 3 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7132306636847,"sku":"3303 (1)","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/3303_1pcHPC.jpg?v=1524087122"},{"product_id":"3-series-industrial-coupler-1-4-hose-barb-brass-steel","title":"Foster 3603, 3 Series, Industrial Coupler, Manual, 1\/4\" Hose Barb, Brass, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e3603\u003c\/strong\u003e is a Brass\/Steel 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3603\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\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 Brass\/Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Manual pull sleeve to connect\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\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\u003eManual pull sleeve\u003c\/strong\u003e — which means a positive, deliberate connection; retract the sleeve by hand to connect or release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass body with steel sleeve\u003c\/strong\u003e — which means corrosion resistance plus a hardened, long-wearing sleeve.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this coupler with a matching 1\/4\" 3 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7132374368303,"sku":"3603 (1)","price":11.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/3603_1pcHPC_f804f92a-b127-46e3-b891-1765370ffc44.jpg?v=1524166703"},{"product_id":"3-series-industrial-coupler-automatic-1-4-hose-barb-brass-steel","title":"Foster 3603GB, 3 Series, Industrial Coupler, Automatic, 1\/4\" Hose Barb, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e3603GB\u003c\/strong\u003e is a Brass 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3603GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\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 Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic, USA-made slim profile (compact push-to-connect socket)\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\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\u003eAutomatic slim profile\u003c\/strong\u003e — which means a compact, USA-made automatic socket that connects with a simple push, ideal where space is tight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass construction\u003c\/strong\u003e — which means corrosion resistance and smooth, reliable operation.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3603GS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\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\u003eOperation:\u003c\/strong\u003e Automatic, USA-made slim profile (compact push-to-connect socket)\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\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\u003eAutomatic slim profile\u003c\/strong\u003e — which means a compact, USA-made automatic socket that connects with a simple push, ideal where space is tight.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this coupler with a matching 1\/4\" 3 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7132495577135,"sku":"3603GS (1)","price":18.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/3603GS_1pcHPC.jpg?v=1526923580"},{"product_id":"3-series-industrial-plug-3-8-female-npt-steel","title":"Foster 15-3, 3 Series, Industrial Plug, 3\/8\" Female NPT, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e15-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 15-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/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\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7132834136111,"sku":"15-3 (1)","price":4.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/15-3_1pcHPC.jpg?v=1522259355"},{"product_id":"3-series-industrial-plug-1-4-hose-barb-steel","title":"Foster 16-3, 3 Series, Industrial Plug, 1\/4\" Hose Barb, Steel","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e16-3\u003c\/strong\u003e is a Steel 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7132964159535,"sku":"16-3 (1)","price":2.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/16-3_1pcHPC.jpg?v=1522698060"},{"product_id":"3-series-industrial-plug-1-4-hose-barb-barb","title":"Foster 16-3B, 3 Series, Industrial Plug, 1\/4\" Hose Barb, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003e16-3B\u003c\/strong\u003e is a Brass 1\/4\" industrial plug from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 16-3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Plug\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 Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e One-Way Shut-Off plug (un-valved; mates with valved socket)\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\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 plug\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\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange coupler (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this plug with a matching 1\/4\" 3 Series coupler for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7133013966895,"sku":"16-3B (1)","price":6.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/16-3B_1pcHPC.jpg?v=1522775099"},{"product_id":"3-series-industrial-coupler-manual-1-4-female-npt-brass","title":"Foster 3003HW, 3 Series, Industrial Coupler, Manual, 1\/4\" Female NPT, Brass (HOT WATER)","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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 -15°F to +400°F.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this air coupler fuel-rated?\u003c\/strong\u003e\u003cbr\u003eNo — the 3 Series is an industrial air\/fluid coupler for compressed air, water, and similar media; it is not rated for fuel.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this coupler with a matching 1\/4\" 3 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7142489423919,"sku":"FM3103 (1)","price":17.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/FM3103_1pcHPC.jpg?v=1526921126"},{"product_id":"3-series-industrial-coupler-automatic-3-8-female-npt-brass","title":"Foster FM3203, 3 Series, Industrial Coupler, Automatic, 3\/8\" Female NPT, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. The Foster \u003cstrong\u003eFM3203\u003c\/strong\u003e is a Brass 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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The Foster \u003cstrong\u003eFM3303\u003c\/strong\u003e is a Brass 1\/4\" industrial coupler from the Foster 3 Series — the most popular industrial air-coupler size, interchanging with any 1\/4\"-body industrial-interchange half (ISO 6150-B \/ ANSI T3.20.14; FM 3 Series complies with A-A-59439; FM accept MIL-C-4109F plugs). Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FM3303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/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\u003eOperation:\u003c\/strong\u003e Automatic, push-to-connect (insert the plug; no sleeve retraction to connect)\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\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\u003eAutomatic push-to-connect\u003c\/strong\u003e — which means single-handed connection with no sleeve retraction, for faster cycle times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass construction\u003c\/strong\u003e — which means corrosion resistance and smooth, reliable operation.\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 — clean airflow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this push-to-connect?\u003c\/strong\u003e\u003cbr\u003eYes — insert the plug and it connects automatically with no sleeve retraction.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. Pair this coupler with a matching 1\/4\" 3 Series plug for a complete, leak-free connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality (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":7142558367791,"sku":"FM3703 (1)","price":18.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/FM3703_1pcHPC.jpg?v=1526332241"},{"product_id":"3-series-industrial-coupler-manual-sleeve-guard-1-4-hose-barb-brass","title":"Foster SG1513, 3 Series, Industrial Coupler, Manual, Sleeve Guard, 1\/4\" Push-On Hose Barb, Brass","description":"\u003cp\u003eReliable, leak-free 1\/4\" connections for air and fluid lines. 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Built to take daily shop abuse and keep sealing leak-free, connection after connection.\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 1\/4\"-body industrial-interchange plug (ISO 6150-B \/ ANSI T3.20.14), the most common air-coupler standard in North America.\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a Sleeve Guard?\u003c\/strong\u003e\u003cbr\u003eA rigid flange at the nose of the socket that protects the sleeve from being knocked open when the hose is dragged.\u003c\/p\u003e\u003cp\u003eIdeal for shop air lines, pneumatic tools, and production equipment. 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Built in the USA for shop air, tools, and production lines.\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 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SG2903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/4\" Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/4\" Coupler\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\u003eOperation:\u003c\/strong\u003e Manual sleeve with Sleeve Guard (rigid flange resists accidental sleeve retraction)\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\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\u003eSleeve Guard\u003c\/strong\u003e — which means a rigid flange shields the sleeve from accidental retraction when the hose is dragged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass construction\u003c\/strong\u003e — which means corrosion resistance and smooth, reliable operation.\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 — clean airflow, no drips, no hiss. 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