EVIL ENERGY 1/2" Heater Hose 5ft Black — EPDM construction, 100 PSI, SAE 20R3

EVIL ENERGY 1/2" Heater Hose is a 5-foot EPDM coolant/radiator line built to SAE 20R3 standards for reliable 100 PSI service and wide temperature tolerance.

This high-quality heater hose from EVIL ENERGY is designed for automotive cooling and hot-water heater connections where durability, flexibility, and pressure resistance matter. Constructed from EPDM rubber and engineered to exceed SAE 20R3 Class D-2 wall requirements, the hose balances kink resistance with tight bending capability and handles common engine fluids such as coolant, antifreeze and water. It’s sized to fit 1/2 inch ID applications and supplied in a 5-foot length for convenient routing and trimming to fit a range of vehicles and systems.

How strong and temperature-resistant is this heater hose?

The hose is rated for 100 PSI working pressure and has a burst pressure of 300 PSI, giving a substantial safety margin for typical automotive cooling demands. Its EPDM construction accepts a wide service temperature span and resists degradation from heat and common coolant formulas.

• Working pressure: 100 psi
• Burst pressure: 300 psi
• Temperature range: -40°F to 257°F
• Material: durable EPDM rubber

Will this hose fit my system and how easy is it to install?

The hose has a 1/2" (13 mm) inside diameter and a 0.78" (20 mm) outside diameter, with tight manufacturing tolerances for consistent fit. At 5 feet long, it offers enough material to trim to length and route around engine components; its minimum bending radius allows tight turns without kinking.

• Inside diameter: 1/2" (13 mm), tolerance ±0.5 mm
• Outside diameter: 0.78" (20 mm), tolerance ±0.8 mm
• Length: 5 feet — cut-to-fit convenience
• Min bending radius: 104 mm for compact routing

What fluids and applications is this hose compatible with?

Specifically formulated EPDM is compatible with coolant mixtures, antifreeze, and water-based fluids used in engine cooling systems and domestic hot-water heater circuits. It’s intended for radiator-to-reservoir connections, heater core lines, and similar coolant transfer roles.

• Compatible media: coolant, antifreeze, water
• Common uses: heater hoses, radiator overflow connections, cooling system links
• Standard compliance: meets/exceeds SAE 20R3 Class D-2 wall specs

How durable is the hose under everyday and harsh conditions?

EPDM rubber resists ozone, heat, and many coolant chemistries better than generic rubbers, helping the hose maintain flexibility and sealing over time. The pressure and burst ratings plus SAE compliance indicate it’s built to withstand routine engine pressures and thermal cycling without premature failure.

• Ozone and heat-resistant EPDM composition
• Designed for repeated thermal cycling without cracking
• Pressure safety margin reduces risk of sudden failures

Who this is for: This EVIL ENERGY 1/2" heater hose is aimed at DIY mechanics, professional technicians, and fleet managers who need a dependable coolant line for repairs, retrofits, or preventative maintenance. It suits vehicles and equipment that require a 1/2" ID hose for heater cores, radiator overflow connections, or other low-to-moderate pressure coolant pathways. If you want a straightforward, cut-to-fit EPDM hose that meets SAE 20R3 expectations and handles everyday operating temperatures and pressures, this product is a practical choice.