{"title":"Foster FRL Series Couplers (Hansen RL)","description":"\u003cp\u003eFoster FRL Series pneumatic quick couplers and plugs, interchangeable with Hansen 2RL and 3RL air fittings. Rated for standard shop air, one-way shut-off, automatic push-to-connect sockets. Body sizes 1\/4\" (2RL) and 3\/8\" (3RL). Brass and steel construction for durable, high-flow air line connections.\u003c\/p\u003e","products":[{"product_id":"foster-2r4004-frl-series","title":"Foster 2R4004, 1\/4\" Hansen RL Interchange Air Coupler x 1\/4\" Female NPT, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4004\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4004\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540032282671,"sku":"FOST 2R4004 (1)","price":21.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4104-frl-series","title":"Foster 2R4104, 1\/4\" Hansen RL Interchange Air Coupler x 1\/4\" Male NPT, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4104\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4104\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540032380975,"sku":"FOST 2R4104 (1)","price":21.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4204-frl-series","title":"Foster 2R4204, 1\/4\" Hansen RL Interchange Air Coupler x 3\/8\" Female NPT, 2FRL Series, Brass\/Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4204\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4204\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\/Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass socket end\u003c\/strong\u003e — which means added corrosion resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540032512047,"sku":"FOST 2R4204 (1)","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4304-frl-series","title":"Foster 2R4304, 1\/4\" Hansen RL Interchange Air Coupler x 3\/8\" Male NPT, 2FRL Series, Brass\/Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4304\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\/Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass socket end\u003c\/strong\u003e — which means added corrosion resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540032643119,"sku":"FOST 2R4304 (1)","price":22.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4404-frl-series","title":"Foster 2R4404, 1\/4\" Hansen RL Interchange Air Coupler x 1\/2\" Female NPT, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4404\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\/2\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. 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Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540032806959,"sku":"FOST 2R4404 (1)","price":23.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4504-frl-series","title":"Foster 2R4504, 1\/4\" Hansen RL Interchange Air Coupler x 1\/2\" Male NPT, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4504\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4504\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\/2\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540032938031,"sku":"FOST 2R4504 (1)","price":23.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4604-frl-series","title":"Foster 2R4604, 1\/4\" Hansen RL Interchange Air Coupler x 3\/8\" Hose ID, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4604\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4604\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540033298479,"sku":"FOST 2R4604 (1)","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4704-frl-series","title":"Foster 2R4704, 1\/4\" Hansen RL Interchange Air Coupler x 1\/2\" Hose ID, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4704\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4704\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\/2\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540033396783,"sku":"FOST 2R4704 (1)","price":25.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4804-frl-series","title":"Foster 2R4804, 1\/4\" Hansen RL Interchange Air Coupler x 3\/8\" Hose ID, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4804\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4804\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540033527855,"sku":"FOST 2R4804 (1)","price":24.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-2r4904-frl-series","title":"Foster 2R4904, 1\/4\" Hansen RL Interchange Air Coupler x 1\/2\" Hose ID, 2FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e2R4904\u003c\/strong\u003e is a 1\/4\" coupler from the 2FRL Series, which interchanges with Hansen 1\/4\" 2RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 2FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2R4904\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 1\/4\" 2RL\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\/2\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 1\/4\" 2RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 1\/4\" 2RL couplers. Only same-interchange 2FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 2FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540033658927,"sku":"FOST 2R4904 (1)","price":24.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l50-frl-series","title":"Foster 3L50, 3\/8\" Hansen RL Interchange Air Plug x 1\/4\" Male NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L50\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" 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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540033789999,"sku":"FOST 3L50 (1)","price":4.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l51-frl-series","title":"Foster 3L51, 3\/8\" Hansen RL Interchange Air Plug x 1\/4\" Female NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L51\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L51\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" 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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540033953839,"sku":"FOST 3L51 (1)","price":10.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l52-frl-series","title":"Foster 3L52, 3\/8\" Hansen RL Interchange Air Plug x 3\/8\" Male NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L52\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L52\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" 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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540034707503,"sku":"FOST 3L52 (1)","price":5.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l52g-frl-series","title":"Foster 3L52G, 3\/8\" Hansen RL Interchange Air Plug Ball Check x 3\/8\" Male NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L52G\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L52G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" 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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e Ball check\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall check valve\u003c\/strong\u003e — which means reliable shut-off on disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540035002415,"sku":"FOST 3L52G (1)","price":15.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l54-frl-series","title":"Foster 3L54, 3\/8\" Hansen RL Interchange Air Plug x 1\/2\" Male NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L54\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L54\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/2\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540035133487,"sku":"FOST 3L54 (1)","price":8.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l54g-frl-series","title":"Foster 3L54G, 3\/8\" Hansen RL Interchange Air Plug Ball Check x 1\/2\" Male NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L54G\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L54G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/2\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e Ball check\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall check valve\u003c\/strong\u003e — which means reliable shut-off on disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540035428399,"sku":"FOST 3L54G (1)","price":14.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l55-frl-series","title":"Foster 3L55, 3\/8\" Hansen RL Interchange Air Plug x 1\/2\" Female NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L55\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L55\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/2\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540035592239,"sku":"FOST 3L55 (1)","price":11.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l55g-frl-series","title":"Foster 3L55G, 3\/8\" Hansen RL Interchange Air Plug Ball Check x 1\/2\" Female NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L55G\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L55G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/2\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e Ball check\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall check valve\u003c\/strong\u003e — which means reliable shut-off on disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540035854383,"sku":"FOST 3L55G (1)","price":14.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l56-frl-series","title":"Foster 3L56, 3\/8\" Hansen RL Interchange Air Plug x 3\/4\" Male NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L56\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L56\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/4\" Male NPT, MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540036018223,"sku":"FOST 3L56 (1)","price":11.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l57-frl-series","title":"Foster 3L57, 3\/8\" Hansen RL Interchange Air Plug x 3\/4\" Female NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L57\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L57\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/4\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540036280367,"sku":"FOST 3L57 (1)","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l58-frl-series","title":"Foster 3L58, 3\/8\" Hansen RL Interchange Air Plug x 1\/4\" Hose ID, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L58\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L58\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" 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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540036378671,"sku":"FOST 3L58 (1)","price":18.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l59-frl-series","title":"Foster 3L59, 3\/8\" Hansen RL Interchange Air Plug x 3\/8\" Hose ID, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L59\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L59\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" 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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540036542511,"sku":"FOST 3L59 (1)","price":6.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l59g-frl-series","title":"Foster 3L59G, 3\/8\" Hansen RL Interchange Air Plug Ball Check x 3\/8\" Hose ID, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L59G\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L59G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" 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\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e Ball check\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall check valve\u003c\/strong\u003e — which means reliable shut-off on disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540036640815,"sku":"FOST 3L59G (1)","price":14.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l60-frl-series","title":"Foster 3L60, 3\/8\" Hansen RL Interchange Air Plug x 1\/2\" Hose ID, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L60\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/2\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540036739119,"sku":"FOST 3L60 (1)","price":14.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l60g-frl-series","title":"Foster 3L60G, 3\/8\" Hansen RL Interchange Air Plug Ball Check x 1\/2\" Hose ID, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L60G\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L60G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/2\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e Ball check\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall check valve\u003c\/strong\u003e — which means reliable shut-off on disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540036902959,"sku":"FOST 3L60G (1)","price":14.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l61-frl-series","title":"Foster 3L61, 3\/8\" Hansen RL Interchange Air Plug x 3\/4\" Hose ID, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L61\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L61\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/4\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540037066799,"sku":"FOST 3L61 (1)","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3l61g-frl-series","title":"Foster 3L61G, 3\/8\" Hansen RL Interchange Air Plug Ball Check x 3\/4\" Hose ID, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3L61G\u003c\/strong\u003e is a 3\/8\" plug from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3L61G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/4\" Hose ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e Ball check\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall check valve\u003c\/strong\u003e — which means reliable shut-off on disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this plug with a matching 3FRL (Hansen RL) socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540037165103,"sku":"FOST 3L61G (1)","price":19.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3r4015-frl-series","title":"Foster 3R4015, 3\/8\" Hansen RL Interchange Air Coupler x 3\/8\" NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3R4015\u003c\/strong\u003e is a 3\/8\" coupler from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3R4015\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/8\" NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 3FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540037263407,"sku":"FOST 3R4015 (1)","price":29.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"},{"product_id":"foster-3r4905-frl-series","title":"Foster 3R4905, 3\/8\" Hansen RL Interchange Air Coupler x 3\/8\" NPT, 3FRL Series, Steel","description":"\u003cp\u003eRugged air-line connections built for the jobsite. The Foster \u003cstrong\u003e3R4905\u003c\/strong\u003e is a 3\/8\" coupler from the 3FRL Series, which interchanges with Hansen 3\/8\" 3RL couplers. It uses an automatic push-to-connect ring-lock design with high flow capacity — and critically, will not disconnect when the hose is dragged across the ground. Rated to 300 PSIG.\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 3FRL (Hansen RL Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3R4905\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Hansen 3\/8\" 3RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 3\/8\" Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 3\/8\" NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e One-Way Shut-Off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Automatic push-to-connect; twist locking sleeve ~20 degrees to release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ring lock - will not disconnect if hose is dragged on the ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e High flow capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (zinc plated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N (Nitrile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 300 PSIG\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\u003eInterchanges with Hansen 3\/8\" 3RL\u003c\/strong\u003e — which means it couples with the widely used Hansen RL air coupler system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing-lock, push-to-connect\u003c\/strong\u003e — which means fast one-handed connection; rotate the sleeve about 20 degrees to release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill not disconnect when dragged\u003c\/strong\u003e — which means the ring lock holds even when the hose is pulled across the ground, a key jobsite advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity\u003c\/strong\u003e — which means strong air delivery to tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this interchange with?\u003c\/strong\u003e\u003cbr\u003eHansen 3\/8\" 3RL couplers. Only same-interchange 3FRL halves connect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a ring lock?\u003c\/strong\u003e\u003cbr\u003eThe ring lock prevents accidental disconnection when the air hose is dragged on the ground — ideal for construction and outdoor work. Rotate the sleeve ~20 degrees to release.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003e300 PSIG max working pressure.\u003c\/p\u003e\u003cp\u003eBuilt for demanding air-tool and jobsite use. Pair this coupler with a matching 3FRL (Hansen RL) plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45540037394479,"sku":"FOST 3R4905 (1)","price":29.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743"}],"url":"https:\/\/www.hpcouplers.com\/en-mx\/collections\/foster-frl-series-couplers-hansen-rl.oembed?page=2","provider":"hpcouplers","version":"1.0","type":"link"}