{"product_id":"evil-energy-3-4-heater-hose-20ft-3-4in-id-epdm-coolant-line-sae-20r3-100-psi-working","title":"EVIL ENERGY 3\/4\" Heater Hose 20ft – 3\/4in ID EPDM Coolant Line, SAE 20R3, 100 PSI Working","description":"\u003cp\u003e\u003cstrong\u003eEVIL ENERGY 3\/4\" Heater Hose 20FT is a durable EPDM coolant hose built to SAE 20R3 standards for radiator, heater, and overflow connections.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 20-foot length of 3\/4\" (19mm) inner-diameter hose is engineered for engine cooling and hot water heater uses where a reliable, flexible coolant line is needed. Constructed from EPDM rubber and rated for continuous service from -40°F to 257°F, the hose combines temperature resilience with chemical compatibility for antifreeze, water, and coolant blends. It is designed to meet SAE 20R3 Standard Wall Class D-2 requirements, offering robust working and burst pressure margins for automotive and industrial cooling circuits.\u003c\/p\u003e\n\n\u003ch3\u003eHow tough is this hose for everyday engine cooling?\u003c\/h3\u003e\n\n\u003cp\u003eThe EVIL ENERGY heater hose delivers dependable mechanical strength with a 100 psi working pressure and a 300 psi burst pressure, giving margin for common pressure spikes in cooling systems. EPDM construction resists heat, steam and many coolant additives, maintaining flexibility and service life across a wide temperature band.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorking pressure: 100 psi for continuous system use.\u003c\/li\u003e\n  \u003cli\u003eBurst pressure: 300 psi safety margin for transient spikes.\u003c\/li\u003e\n  \u003cli\u003eTemperature range: -40°F to 257°F for cold starts and high-heat conditions.\u003c\/li\u003e\n  \u003cli\u003eMaterial: EPDM rubber resists steam, heat and common coolant chemicals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this hose fit my vehicle or heater setup?\u003c\/h3\u003e\n\n\u003cp\u003eThe hose has an inner diameter of 3\/4\" (19mm) with an outer diameter of 1.10\" (28mm), tolerances provided to help ensure compatibility with standard clamps and fittings. With a 20-foot spool length you can cut to custom runs for radiator-to-overflow, heater core connections, or replacement sections in tight engine bays.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eID: 3\/4\" (19mm) with ±0.6mm tolerance for accurate fitting.\u003c\/li\u003e\n  \u003cli\u003eOD: 1.10\" (28mm) with ±0.8mm tolerance for clamp sizing.\u003c\/li\u003e\n  \u003cli\u003eLength: 20 feet to cover long runs or multiple cuts.\u003c\/li\u003e\n  \u003cli\u003eMin bending radius: 152mm for routing without kinks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat fluids and conditions can this hose handle?\u003c\/h3\u003e\n\n\u003cp\u003eDesigned for coolant system service, the EVIL ENERGY hose is compatible with water, antifreeze mixtures and many coolant formulations typically used in automotive and industrial equipment. Its EPDM composition tolerates the thermal cycling and chemical exposures common in radiator and heater applications without rapid degradation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible media: coolant, antifreeze, water, and similar fluids.\u003c\/li\u003e\n  \u003cli\u003eResists heat, steam and typical coolant additives.\u003c\/li\u003e\n  \u003cli\u003eMeets SAE 20R3 Standard Wall Class D-2 for coolant hose performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install and route this hose?\u003c\/h3\u003e\n\n\u003cp\u003eThe hose’s flexibility and defined minimum bending radius make routing straightforward in cramped engine compartments and heater enclosures. Cut to length with a sharp blade or hose cutter, secure with standard clamps, and use the tolerance specifications to choose matching fittings for leak-free joins.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCut-to-fit 20 ft spool for custom installations.\u003c\/li\u003e\n  \u003cli\u003eMin bending radius: 152mm to prevent kinks and maintain flow.\u003c\/li\u003e\n  \u003cli\u003eUse standard worm-drive or crimp clamps sized for 1.10\" OD.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: EVIL ENERGY’s 3\/4\" Heater Hose is suited for mechanics, DIY vehicle owners, fleet maintenance teams and HVAC technicians who need a reliable, flexible coolant line for radiator, heater core, overflow, or hot-water heater connections. If you require an SAE 20R3-compliant hose with broad temperature tolerance and chemical compatibility for antifreeze\/water mixtures, this hose is built to provide a long-lasting replacement or custom routing solution.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this hose compatible with antifreeze?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The EPDM material is compatible with antifreeze and common coolant mixtures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I cut the 20ft hose for custom lengths?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 20-foot spool is designed to be cut to length and fitted with standard clamps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EVIL ENERGY","offers":[{"title":"Default Title","offer_id":67586503377081,"sku":"B0D5CNXHRH","price":150.58,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/evil-energy-front-packaging-20ft-hose.jpg?v=1790485082","url":"https:\/\/redleafauto.ca\/products\/evil-energy-3-4-heater-hose-20ft-3-4in-id-epdm-coolant-line-sae-20r3-100-psi-working","provider":"Redleaf Auto","version":"1.0","type":"link"}