{"title":"Flexfab 5521 Green Premium Heater Hose","description":"\u003cp\u003eThe Flexfab 5521 series is premium green silicone heater hose rated to 350F, built for demanding radiator and coolant applications. Sold by the foot, box, or reel across a full range of diameters.\u003c\/p\u003e","products":[{"product_id":"flexfab-5521-025-1-4-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-025, 1\/4\" x 50 ft Green Premium Silicone Heater Hose, .25\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-025\u003c\/span\u003e​​​​​​​\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.25\" (6mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.64\" (16mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.121\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31708847996975,"sku":"5521-025 (50)","price":187.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_07e6ef3c-6fc5-4b5b-9fe2-45649d22469f.jpg?v=1583780267"},{"product_id":"flexfab-5521-025-1-4-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a-1","title":"Flexfab 5521-025, 1\/4\" x 25 ft Green Premium Silicone Heater Hose, .25\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-025\u003c\/span\u003e​​​​​​​\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.25\" (6mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.64\" (16mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.121\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31708860907567,"sku":"5521-025 (25)","price":97.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_b3f69dff-f1c7-4233-a6b4-21202adcc398.jpg?v=1583781221"},{"product_id":"5521-025-5-16-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-031, 5\/16\" x 25 ft Green Premium Silicone Heater Hose, .31\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-031\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.31\" (8mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.70\" (18mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.151\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31708861104175,"sku":"5521-031 (25)","price":121.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_d950db5a-47fe-4c87-b978-404cdee56471.jpg?v=1583781306"},{"product_id":"flexfab-5521-038-3-8-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-038, 3\/8\" x 25 ft Green Premium Silicone Heater Hose, .38\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-038\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/collections\/flexfab-5526-038-3-8-blue-silicone-heater-hose\/products\/flexfab-flx2582-0006-worm-gear-lined-clamps-0-50-0-88-13mm-22mm-2pc\" title=\"FLX2582-0006\"\u003eFLX2582-0006\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.38\" (10mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.77\" (20mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31709901914159,"sku":"5521-038 (25)","price":118.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_d89c6f4b-e675-4361-af4b-04bf2d21018c.jpg?v=1583808116"},{"product_id":"flexfab-5521-038-3-8-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-038, 3\/8\" x 50 ft Green Premium Silicone Heater Hose, .38\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-038\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/collections\/flexfab-5526-038-3-8-blue-silicone-heater-hose\/products\/flexfab-flx2582-0006-worm-gear-lined-clamps-0-50-0-88-13mm-22mm-2pc\" title=\"FLX2582-0006\"\u003eFLX2582-0006\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.38\" (10mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.77\" (20mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31709917118511,"sku":"5521-038 (50)","price":222.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_c90b622a-1000-4f05-acba-e5cca53a06b3.jpg?v=1583808783"},{"product_id":"flexfab-5521-050-3-8-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-050, 1\/2\" x 25 ft Green Premium Silicone Heater Hose, .50\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-050\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/collections\/flexfab-5526-038-3-8-blue-silicone-heater-hose\/products\/flexfab-flx2582-0006-worm-gear-lined-clamps-0-50-0-88-13mm-22mm-2pc\" title=\"FLX2582-0006\"\u003eFLX2582-0006\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.50\" (13mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.89\" (23mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 425\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 425\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31710140563503,"sku":"5521-050 (25)","price":131.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_ac4f5f15-e7d4-4766-a7d2-687ae55c3aea.jpg?v=1583811961"},{"product_id":"flexfab-5521-050-1-2-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-050, 1\/2\" x 50 ft Green Premium Silicone Heater Hose, .50\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-050\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/collections\/flexfab-5526-038-3-8-blue-silicone-heater-hose\/products\/flexfab-flx2582-0006-worm-gear-lined-clamps-0-50-0-88-13mm-22mm-2pc\" title=\"FLX2582-0006\"\u003eFLX2582-0006\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.50\" (13mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.89\" (23mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 425\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 425\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31710222843951,"sku":"5521-050 (50)","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_7826923b-822a-4484-9bfb-9622e27c250b.jpg?v=1583812822"},{"product_id":"flexfab-5521-062-5-8-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-062, 5\/8\" x 25 ft Green Premium Silicone Heater Hose, .63\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-062\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.63\" (16mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.02\" (26mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 375\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 375\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31710241095727,"sku":"5521-062 (25)","price":151.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_13347710-7ee9-4edb-9e00-cd0a31ad6b41.jpg?v=1583813389"},{"product_id":"flexfab-5521-062-5-8-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-062, 5\/8\" x 50 ft Green Premium Silicone Heater Hose, .63\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-062\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.63\" (16mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.02\" (26mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 375\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 375\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31710255677487,"sku":"5521-062 (50)","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_c12ffcb6-63bc-4152-93a3-0d4cd4b211ea.jpg?v=1583813691"},{"product_id":"flexfab-5521-075-3-4-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-075, 3\/4\" x 25 ft Green Premium Silicone Heater Hose, .75\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-075\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/products\/flexfab-flx2582-0012-worm-gear-lined-clamps-0-88-1-25-22mm-32mm-2pc\" title=\"FLX2582-0012\"\u003eFLX2582-0012\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.75\" (19mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.14\" (29mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.301\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 325\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 325\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31712019185711,"sku":"5521-075 (25)","price":195.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_8b32720b-e46d-4b1a-beda-68baea39643f.jpg?v=1583868422"},{"product_id":"flexfab-5521-075-3-4-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-075, 3\/4\" x 50 ft Green Premium Silicone Heater Hose, .75\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-075\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/products\/flexfab-flx2582-0012-worm-gear-lined-clamps-0-88-1-25-22mm-32mm-2pc\" title=\"FLX2582-0012\"\u003eFLX2582-0012\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.75\" (19mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.14\" (29mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.301\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 325\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 325\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713653981231,"sku":"5521-075 (50)","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_b0817b8b-9931-4f30-b5f7-2abcb95588c4.jpg?v=1583939236"},{"product_id":"flexfab-5521-087-7-8-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-087, 7\/8\" x 25 ft Green Premium Silicone Heater Hose, .88\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-087\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/products\/flexfab-flx2582-0012-worm-gear-lined-clamps-0-88-1-25-22mm-32mm-2pc\" title=\"FLX2582-0012\"\u003eFLX2582-0012\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.88\" (22mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.27\" (32mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.346\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713663483951,"sku":"5521-087 (25)","price":204.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_49e5864e-605c-460e-ae10-34e768c57e08.jpg?v=1583939667"},{"product_id":"flexfab-5521-087-7-8-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-087, 7\/8\" x 50 ft Green Premium Silicone Heater Hose, .88\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-087\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested Clamp:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.hpcouplers.com\/products\/flexfab-flx2582-0012-worm-gear-lined-clamps-0-88-1-25-22mm-32mm-2pc\" title=\"FLX2582-0012\"\u003eFLX2582-0012\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.88\" (22mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.27\" (32mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.346\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713721876527,"sku":"5521-087 (50)","price":385.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_ecbe01c2-fbcb-4f5a-a9f7-6b2a13ad2a5d.jpg?v=1583940812"},{"product_id":"flexfab-5521-100-1-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-100, 1\" x 25 ft Green Premium Silicone Heater Hose, 1.00\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-100\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.00\" (25mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.39\" (35mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.391\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713723973679,"sku":"5521-100 (25)","price":268.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_9d0a415e-171e-49f8-8b35-d33c8b3b4b59.jpg?v=1583941065"},{"product_id":"flexfab-5521-100-1-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-100, 1\" x 50 ft Green Premium Silicone Heater Hose, 1.00\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-100\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.00\" (25mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.39\" (35mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.391\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713726103599,"sku":"5521-100 (50)","price":512.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_fa363325-69e2-49f2-ac4d-abc7836d8fa8.jpg?v=1583941251"},{"product_id":"flexfab-5521-125-1-1-4-x-25-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-125, 1-1\/4\" x 25 ft Green Premium Silicone Heater Hose, 1.25\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 25'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713749925935,"sku":"5521-125 (25)","price":332.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_5f0768aa-a569-4d27-bb62-26d1a3bd65ac.jpg?v=1583941868"},{"product_id":"flexfab-5521-125-1-1-4-x-50-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-125, 1-1\/4\" x 50 ft Green Premium Silicone Heater Hose, 1.25\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 50'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713753563183,"sku":"5521-125 (50)","price":662.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_70c6c20b-a181-46cf-9bad-4806c068fa1c.jpg?v=1583942190"},{"product_id":"flexfab-5521-125-1-1-4-x-150-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a-reel","title":"Flexfab 5521-125, 1-1\/4\" x 150 ft Green Premium Silicone Heater Hose, 1.25\" (Reel)","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 150' (Reel)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31713781481519,"sku":"5521-125 (150)","price":1919.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_ac59111e-67be-4af9-b421-9de9d8a1a0c3.jpg?v=1583945142"},{"product_id":"flexfab-5521-025-1-4-x-5-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-025, 1\/4\" x 5 ft Green Premium Silicone Heater Hose, .25\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-025\u003c\/span\u003e​​​​​​​\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.25\" (6mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.64\" (16mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 5'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.121\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31720328888367,"sku":"5521-025 (5)","price":25.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_7fd28dfc-5289-420a-9c75-3b3313817906.jpg?v=1584140985"},{"product_id":"flexfab-5521-031-5-16-x-5-ft-green-premium-silicone-heater-hose-coolant-j20r3-class-a","title":"Flexfab 5521-031, 5\/16\" x 5 ft Green Premium Silicone Heater Hose, .31\"","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-031\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.31\" (8mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.70\" (18mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 5'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radious\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.151\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31723274600495,"sku":"5521-031 (5)","price":25.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_dd2346a9-2ca6-4146-83ca-4e83272f93a3.jpg?v=1584295638"},{"product_id":"flexfab-5521-125-1-1-4-x-1-ft-choose-your-length-green-premium-silicone-heater-hose-1-25","title":"Flexfab 5521-125, 1-1\/4\" x 1 ft (Choose your length) Green Premium Silicone Heater Hose, 1.25\"","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 1' (Choose Your Length)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":31736942100527,"sku":"5521-125 (1)","price":13.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_663ecaa1-9692-4539-9944-cd688f63d85f.jpg?v=1584813979"},{"product_id":"flexfab-5521-125-1-1-4-x-75-ft-green-premium-silicone-heater-hose-1-25","title":"Flexfab 5521-125, 1-1\/4\" x 75 ft Green Premium Silicone Heater Hose, 1.25\"","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHose Length\u003c\/strong\u003e: 75'\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5 times the Hose ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTMC RP303B Class 1 Grade II - PSI\u003c\/strong\u003e: 125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F (-54C to +260C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: Green Cover, with Nylon Fiber Reinforcement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e: Silicone hose with 1-ply of Nylon Fiber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":44664520933423,"sku":"5521-125 (75)","price":993.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/products\/5521-Stock_70c6c20b-a181-46cf-9bad-4806c068fa1c.jpg?v=1583942190"},{"product_id":"flexfab-5521-025x25-0-25-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-025x25, 1\/4\" ID x 25 ft Box Premium Green Silicone Heater Hose, 6mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-025x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 1\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" (6mm) ID × 0.64\" (16mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-025x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.25\" (6mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.64\" (16mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.121\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682006063,"sku":"FLEX 5521-025 (25 Box) v1.0","price":102.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-025x50-0-25-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-025x50, 1\/4\" ID x 50 ft Box Premium Green Silicone Heater Hose, 6mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-025x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 1\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" (6mm) ID × 0.64\" (16mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-025x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.25\" (6mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.64\" (16mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.121\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682169903,"sku":"FLEX 5521-025 (50 Box) v1.0","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-025x800-0-25-x-800-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-025x800, 1\/4\" ID x 800 ft Spool Premium Green Silicone Heater Hose, 6mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-025x800\u003c\/strong\u003e premium silicone heater hose — a 800-foot spool of 1\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" (6mm) ID × 0.64\" (16mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 800-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-025x800\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.25\" (6mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.64\" (16mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 800 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.121\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682268207,"sku":"FLEX 5521-025 (800 Reel) v1.0","price":2699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-031x25-0-31-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-031x25, 5\/16\" ID x 25 ft Box Premium Green Silicone Heater Hose, 8mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-031x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 5\/16\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/16\" (8mm) ID × 0.7\" (18mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-031x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.31\" (8mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.7\" (18mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.151\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682366511,"sku":"FLEX 5521-031 (25 Box) v1.0","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-031x600-0-31-x-600-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-031x600, 5\/16\" ID x 600 ft Spool Premium Green Silicone Heater Hose, 8mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-031x600\u003c\/strong\u003e premium silicone heater hose — a 600-foot spool of 5\/16\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/16\" (8mm) ID × 0.7\" (18mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 600-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-031x600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.31\" (8mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.7\" (18mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 600 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.151\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682432047,"sku":"FLEX 5521-031 (600 Reel) v1.0","price":2749.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-038x25-0-38-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-038x25, 3\/8\" ID x 25 ft Box Premium Green Silicone Heater Hose, 10mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-038x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 3\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/8\" (10mm) ID × 0.77\" (20mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-038x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.38\" (10mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.77\" (20mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682497583,"sku":"FLEX 5521-038 (25 Box) v1.0","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-038x50-0-38-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-038x50, 3\/8\" ID x 50 ft Box Premium Green Silicone Heater Hose, 10mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-038x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 3\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/8\" (10mm) ID × 0.77\" (20mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-038x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.38\" (10mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.77\" (20mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682595887,"sku":"FLEX 5521-038 (50 Box) v1.0","price":223.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-038x500-0-38-x-500-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-038x500, 3\/8\" ID x 500 ft Spool Premium Green Silicone Heater Hose, 10mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-038x500\u003c\/strong\u003e premium silicone heater hose — a 500-foot spool of 3\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 475 PSI burst rating, which means a wider margin over the ~158 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/8\" (10mm) ID × 0.77\" (20mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 500-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-038x500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.38\" (10mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.77\" (20mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 500 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.181\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682726959,"sku":"FLEX 5521-038 (500 Reel) v1.0","price":2174.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-050x25-0-50-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-050x25, 1\/2\" ID x 25 ft Box Premium Green Silicone Heater Hose, 13mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-050x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 1\/2\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 425 PSI burst rating, which means a wider margin over the ~142 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/2\" (13mm) ID × 0.89\" (23mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-050x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.50\" (13mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.89\" (23mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.226\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682858031,"sku":"FLEX 5521-050 (25 Box) v1.0","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-050x50-0-50-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-050x50, 1\/2\" ID x 50 ft Box Premium Green Silicone Heater Hose, 13mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-050x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 1\/2\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 425 PSI burst rating, which means a wider margin over the ~142 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/2\" (13mm) ID × 0.89\" (23mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-050x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.50\" (13mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.89\" (23mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.226\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457682989103,"sku":"FLEX 5521-050 (50 Box) v1.0","price":248.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-050x500-0-50-x-500-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-050x500, 1\/2\" ID x 500 ft Spool Premium Green Silicone Heater Hose, 13mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-050x500\u003c\/strong\u003e premium silicone heater hose — a 500-foot spool of 1\/2\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 425 PSI burst rating, which means a wider margin over the ~142 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/2\" (13mm) ID × 0.89\" (23mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 500-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0006 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-050x500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.50\" (13mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 0.89\" (23mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 500 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.226\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457683152943,"sku":"FLEX 5521-050 (500 Reel) v1.0","price":2499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-062x25-0-63-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-062x25, 5\/8\" ID x 25 ft Box Premium Green Silicone Heater Hose, 16mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-062x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 5\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 375 PSI burst rating, which means a wider margin over the ~125 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/8\" (16mm) ID × 1.02\" (26mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0010 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-062x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.63\" (16mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.02\" (26mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.258\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 375\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 375\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457683316783,"sku":"FLEX 5521-062 (25 Box) v1.0","price":156.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-062x50-0-63-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-062x50, 5\/8\" ID x 50 ft Box Premium Green Silicone Heater Hose, 16mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-062x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 5\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 375 PSI burst rating, which means a wider margin over the ~125 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/8\" (16mm) ID × 1.02\" (26mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0010 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-062x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.63\" (16mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.02\" (26mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.258\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 375\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 375\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457683447855,"sku":"FLEX 5521-062 (50 Box) v1.0","price":288.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-062x400-0-63-x-400-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-062x400, 5\/8\" ID x 400 ft Spool Premium Green Silicone Heater Hose, 16mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-062x400\u003c\/strong\u003e premium silicone heater hose — a 400-foot spool of 5\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 375 PSI burst rating, which means a wider margin over the ~125 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/8\" (16mm) ID × 1.02\" (26mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 400-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0010 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-062x400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.63\" (16mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.02\" (26mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 400 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.258\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 375\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 375\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457683578927,"sku":"FLEX 5521-062 (400 Reel) v1.0","price":2299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-075x25-0-75-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-075x25, 3\/4\" ID x 25 ft Box Premium Green Silicone Heater Hose, 19mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-075x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 3\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 325 PSI burst rating, which means a wider margin over the ~108 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/4\" (19mm) ID × 1.14\" (29mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0012 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-075x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.75\" (19mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.14\" (29mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.301\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 325\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 325\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457683709999,"sku":"FLEX 5521-075 (25 Box) v1.0","price":207.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-075x50-0-75-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-075x50, 3\/4\" ID x 50 ft Box Premium Green Silicone Heater Hose, 19mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-075x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 3\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 325 PSI burst rating, which means a wider margin over the ~108 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/4\" (19mm) ID × 1.14\" (29mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0012 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-075x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.75\" (19mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.14\" (29mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.301\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 325\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 325\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457683841071,"sku":"FLEX 5521-075 (50 Box) v1.0","price":379.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-075x300-0-75-x-300-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-075x300, 3\/4\" ID x 300 ft Spool Premium Green Silicone Heater Hose, 19mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-075x300\u003c\/strong\u003e premium silicone heater hose — a 300-foot spool of 3\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 325 PSI burst rating, which means a wider margin over the ~108 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/4\" (19mm) ID × 1.14\" (29mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 300-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0012 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-075x300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.75\" (19mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.14\" (29mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 300 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.301\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 325\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 325\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457684004911,"sku":"FLEX 5521-075 (300 Reel) v1.0","price":2099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-087x25-0-88-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-087x25, 7\/8\" ID x 25 ft Box Premium Green Silicone Heater Hose, 22mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-087x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 7\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 300 PSI burst rating, which means a wider margin over the ~100 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7\/8\" (22mm) ID × 1.27\" (32mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0012 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-087x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.88\" (22mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.27\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.346\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457684103215,"sku":"FLEX 5521-087 (25 Box) v1.0","price":217.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-087x50-0-88-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-087x50, 7\/8\" ID x 50 ft Box Premium Green Silicone Heater Hose, 22mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-087x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 7\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 300 PSI burst rating, which means a wider margin over the ~100 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7\/8\" (22mm) ID × 1.27\" (32mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0012 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-087x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.88\" (22mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.27\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.346\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457684267055,"sku":"FLEX 5521-087 (50 Box) v1.0","price":402.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-087x150-0-88-x-150-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-087x150, 7\/8\" ID x 150 ft Spool Premium Green Silicone Heater Hose, 22mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-087x150\u003c\/strong\u003e premium silicone heater hose — a 150-foot spool of 7\/8\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 300 PSI burst rating, which means a wider margin over the ~100 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7\/8\" (22mm) ID × 1.27\" (32mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 150-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0012 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-087x150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 0.88\" (22mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.27\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 150 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.346\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457684430895,"sku":"FLEX 5521-087 (150 Reel) v1.0","price":1549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-100x25-1-00-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-100x25, 1\" ID x 25 ft Box Premium Green Silicone Heater Hose, 25mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-100x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 1\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 300 PSI burst rating, which means a wider margin over the ~100 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\" (25mm) ID × 1.39\" (35mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0016 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-100x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.00\" (25mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.39\" (35mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.391\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457684627503,"sku":"FLEX 5521-100 (25 Box) v1.0","price":281.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-100x50-1-00-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-100x50, 1\" ID x 50 ft Box Premium Green Silicone Heater Hose, 25mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-100x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 1\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 300 PSI burst rating, which means a wider margin over the ~100 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\" (25mm) ID × 1.39\" (35mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0016 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-100x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.00\" (25mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.39\" (35mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.391\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457684791343,"sku":"FLEX 5521-100 (50 Box) v1.0","price":534.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-100x200-1-00-x-200-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-100x200, 1\" ID x 200 ft Spool Premium Green Silicone Heater Hose, 25mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-100x200\u003c\/strong\u003e premium silicone heater hose — a 200-foot spool of 1\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 300 PSI burst rating, which means a wider margin over the ~100 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\" (25mm) ID × 1.39\" (35mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 200-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0016 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-100x200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.00\" (25mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.39\" (35mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 200 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.391\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457684987951,"sku":"FLEX 5521-100 (200 Reel) v1.0","price":2099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-125x25-1-25-x-25-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-125x25, 1-1\/4\" ID x 25 ft Box Premium Green Silicone Heater Hose, 32mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-125x25\u003c\/strong\u003e premium silicone heater hose — a 25-foot box of 1-1\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 200 PSI burst rating, which means a wider margin over the ~67 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-1\/4\" (32mm) ID × 1.64\" (42mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 25-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0020 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125x25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 275\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457685151791,"sku":"FLEX 5521-125 (25 Box) v1.0","price":348.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-125x50-1-25-x-50-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-125x50, 1-1\/4\" ID x 50 ft Box Premium Green Silicone Heater Hose, 32mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-125x50\u003c\/strong\u003e premium silicone heater hose — a 50-foot box of 1-1\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 200 PSI burst rating, which means a wider margin over the ~67 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-1\/4\" (32mm) ID × 1.64\" (42mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 50-foot box, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0020 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125x50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 feet (Box)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 275\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457685348399,"sku":"FLEX 5521-125 (50 Box) v1.0","price":679.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"},{"product_id":"flexfab-5521-125x150-1-25-x-150-ft-premium-green-silicone-heater-hose","title":"Flexfab 5521-125x150, 1-1\/4\" ID x 150 ft Spool Premium Green Silicone Heater Hose, 32mm 350F Radiator Coolant","description":"\u003cp\u003eStep up to higher pressure handling with the \u003cstrong\u003eFlexfab 5521-125x150\u003c\/strong\u003e premium silicone heater hose — a 150-foot spool of 1-1\/4\" ID hose with a thicker wall than standard heater hose. Its green-cover, red-liner silicone construction resists hardening, cracking, cold leaks, aging, and coolant-additive attack for dependable long-term sealing.\u003c\/p\u003e\n\u003ch2\u003eWhy this Flexfab premium heater hose\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThicker wall for higher pressure\u003c\/strong\u003e — 200 PSI burst rating, which means a wider margin over the ~67 PSI working pressure than standard heater hose offers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone with 1-ply nylon reinforcement\u003c\/strong\u003e — superior flexibility with premium durability, extreme-duty-cycle tested for hostile engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−65°F to +350°F range\u003c\/strong\u003e — holds up to under-hood heat and winter cold without going brittle or soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets SAE J20 R3 Class A \u0026amp; TMC RP303B Class I Grade II\u003c\/strong\u003e — documented premium heater-hose spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-1\/4\" (32mm) ID × 1.64\" (42mm) OD\u003c\/strong\u003e, bend radius 5× ID — tight, kink-free routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupplied as a continuous 150-foot spool, ideal for heater core, radiator, and coolant runs that need extra pressure margin. Pairs with a Flexfab 2582-0020 clamp. (Silicone heater hose is for coolant\/heater use — not fuel.)\u003c\/p\u003e\n\u003cp\u003eBacked by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexFab Series\u003c\/strong\u003e: 5521\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5521-125x150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID)\u003c\/strong\u003e: 1.25\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD)\u003c\/strong\u003e: 1.64\" (42mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 150 feet (Spool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: .170\" \/ .220\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight LB\/FT\u003c\/strong\u003e: 0.491\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Burst Pressure - PSI\u003c\/strong\u003e: 200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J20 R3 Class A - PSI\u003c\/strong\u003e: 275\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMC RP303B Class I Grade II - PSI\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius\u003c\/strong\u003e: 5x ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temp range\u003c\/strong\u003e: -65F to +350F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Green cover \/ red liner Silicone hose with 1-ply nylon fiber reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flexfab","offers":[{"title":"Default Title","offer_id":45457685512239,"sku":"FLEX 5521-125 (150 Reel) v1.0","price":2009.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Flexfab_Stock_image_v1_06.10.26.png?v=1781140351"}],"url":"https:\/\/www.hpcouplers.com\/en-mx\/collections\/flexfab-5521-green-premium-heater-hose.oembed","provider":"hpcouplers","version":"1.0","type":"link"}