{"title":"Check Valves","description":null,"products":[{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-8an-male","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -8AN Male","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-8AN male connections\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300+ psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911371636,"sku":"FCV-12-08AM","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-08am_1_lrg_1_1.jpg?v=1784323705"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-12an-male","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -12AN Male","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-12AN male connections\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300+ psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911404404,"sku":"FCV-12-12AM","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-12am_1_lrg_2.jpg?v=1784323706"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-12an-o-ring-boss-female","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -12AN O-Ring Boss Female","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-12 female O-ring boss connections\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300+ psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911437172,"sku":"FCV-12-12RF","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-12rf_2_lrg_1.jpg?v=1784323706"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-10an-o-ring-boss-female-hinge-side","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -10AN O-Ring Boss Female, Hinge Side","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-10AN female O-ring boss connections, hinge side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911469940,"sku":"FCV-12-10RF-99","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-10rf-99_3_lrg_1.jpg?v=1784323707"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-10an-o-ring-boss-female-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -10AN O-Ring Boss Female, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-10AN female O-ring boss connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911502708,"sku":"FCV-12-10RF-02","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-10rf-99_3_lrg_1_ae2a91cb-1fcf-455e-a5f5-c5a7094457fc.jpg?v=1784323708"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-8an-male-hinge-side","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -8AN Male, Hinge Side","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-8AN male connections, hinge side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911535476,"sku":"FCV-12-08AM-99","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-08am-99_3_lrg_2.jpg?v=1784323708"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-8an-male-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -8AN Male, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-8AN male connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911568244,"sku":"FCV-12-08AM-02","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-08am-02_2_lrg_2.jpg?v=1784323709"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-10an-male-hinge-side","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -10AN Male, Hinge Side","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-10AN male connections, hinge side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911601012,"sku":"FCV-12-10AM-99","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-10am-99_3_lrg_2.jpg?v=1784323710"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-10an-male-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -10AN Male, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-10AN male connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54978911633780,"sku":"FCV-12-10AM-02","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-10am-02_2_lrg_2_1.jpg?v=1784323710"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-12an-male-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -12AN Male, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-12AN male connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982129680756,"sku":"FCV-12-12AM-02","price":79.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-12am-02_2_lrg_2.jpg?v=1784377794"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-12an-male-hinge-side","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -12AN Male, Hinge Side","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-12AN male connections, hinge side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982129746292,"sku":"FCV-12-12AM-99","price":79.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-12am-99_3_lrg_3.jpg?v=1784377795"},{"product_id":"improved-racing-high-flow-dual-source-pcv-check-valve-for-turbocharged-engines-6-orb","title":"Improved Racing High-Flow Dual Source PCV Check Valve for Turbocharged Engines, -6 ORB","description":"\u003cp\u003eRun two vacuum sources to the crankcase while staying protected against boost. A dual-inlet, dual-outlet flapper valve built specifically for PCV systems on forced induction engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects two vacuum sources to the crankcase while protecting against boost in forced induction applications\u003c\/li\u003e\n\u003cli\u003e-6 O-ring boss connections\u003c\/li\u003e\n\u003cli\u003eVery low 0.04 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003eHolds 300+ psi of back pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982139609460,"sku":"DCV-06","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/dcv-06_2_lg.jpg?v=1784378110"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-6an-male","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -6AN Male","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-6AN male connections\u003c\/li\u003e\n\u003cli\u003e0.04 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300+ psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM rubber seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982139674996,"sku":"FCV-06-06AM","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-06am_3_lrg.jpg?v=1784378111"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-4an-male","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -4AN Male","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-4AN male connections\u003c\/li\u003e\n\u003cli\u003e0.04 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300+ psi maximum backflow holding pressure, 1,000+ psi maximum unchecked operating pressure\u003c\/li\u003e\n\u003cli\u003eFKM rubber seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982139740532,"sku":"FCV-06-04AM","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-04am_1_lrg.jpg?v=1784378112"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-6an-o-ring-boss","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -6AN O-Ring Boss","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-6AN female O-ring boss connections\u003c\/li\u003e\n\u003cli\u003e0.04 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300+ psi maximum backflow holding pressure, 1,000+ psi maximum unchecked operating pressure\u003c\/li\u003e\n\u003cli\u003eFKM rubber seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982139773300,"sku":"FCV-06-06RF","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-06rf_1_lrg.jpg?v=1784378112"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-10an-male","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -10AN Male","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-10AN male connections\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300+ psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982170607988,"sku":"FCV-12-10AM","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-10am_1_lrg_1.jpg?v=1784378452"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-4an-male-hinge-side","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -4AN Male, Hinge Side","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-4AN male connections, hinge side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544032116,"sku":"FCV-06-04AM-99","price":39.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-04am-99_3_lrg_2.jpg?v=1784384577"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-6an-male-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -6AN Male, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-6AN male connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544097652,"sku":"FCV-06-06AM-02","price":39.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-06am-02_2_lrg.jpg?v=1784384577"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-6-orb-female-hinge-side","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -6 ORB Female, Hinge Side","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-6 female O-ring boss connections, hinge side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544163188,"sku":"FCV-06-06RF-99","price":39.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-06rf-99_3_lrg_2.jpg?v=1784384578"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-6-orb-female-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -6 ORB Female, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-6 female O-ring boss connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544490868,"sku":"FCV-06-06RF-02","price":39.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-06rf-02_2_lrg.jpg?v=1784384578"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-4an-male-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -4AN Male, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-4AN male connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544523636,"sku":"FCV-06-04AM-02","price":39.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-06-04am-02_2_lrg.jpg?v=1784384579"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-12an-o-ring-boss-female-hinge-side","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -12AN O-Ring Boss Female, Hinge Side","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-12AN female O-ring boss connections, hinge side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544589172,"sku":"FCV-12-12RF-99","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-12rf-99_3_lrg.jpg?v=1784384579"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-12an-o-ring-boss-female-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -12AN O-Ring Boss Female, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-12AN female O-ring boss connections, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544654708,"sku":"FCV-12-12RF-02","price":74.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-12rf-02_2_lrg.jpg?v=1784384580"},{"product_id":"improved-racing-high-flow-low-cracking-pressure-flapper-check-valve-1-8-npt-female-outlet","title":"Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, 1\/8\" NPT Female, Outlet","description":"\u003cp\u003eA flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1\/8\" NPT female connection, outlet side\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure\u003c\/li\u003e\n\u003cli\u003e300 psi maximum backflow holding pressure, 1,000+ psi maximum in the normal direction of flow\u003c\/li\u003e\n\u003cli\u003eFKM seals compatible with most automotive fluids and gases\u003c\/li\u003e\n\u003cli\u003e0°F to +302°F (-18°C to +150°C) operating temperature range\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":54982544949620,"sku":"FCV-12-02PF-02","price":79.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/2300\/1972\/files\/fcv-12-02pf-02_2_lrg.jpg?v=1784384582"}],"url":"https:\/\/jsi-racing.com\/collections\/check-valves.oembed?page=2","provider":"JSI Racing","version":"1.0","type":"link"}