Outus Silicone Heater Hose 1" ID, 25ft Blue - Reinforced High-Temp Coolant Line

This 25-foot coil of blue silicone hose is designed for automotive cooling systems, heater cores, and other thermal fluid lines where heat resistance and longevity matter. Constructed with a reinforced polyester braid, the hose offers superior aging and temperature resistance compared with EPDM rubber, while remaining easy to cut and route for custom installations. It balances flexibility and strength for everyday repairs, restorations, or performance projects.

How does the Outus silicone hose stand up to heat and pressure?

The hose is formulated to resist high temperatures and maintain integrity under pressure. It handles operating temperatures from -40°F to 400°F (-40°C to 200°C) and supports working pressures up to 85 PSI with a burst rating near 142 PSI, so it’s suitable for many automotive thermal systems.

• Temperature range: -40°F to 400°F (-40°C to 200°C)
• Working pressure: up to 85 PSI; burst ≈142 PSI
• Reinforced polyester braid improves strength and longevity

Will this hose fit my vehicle or project?

The Outus hose has a 1" (25 mm) inner diameter and a 33 mm outer diameter, supplied as a 25-foot coil so you can cut exact lengths for multiple connections. Its dimensions and flexibility make it compatible with most heater and radiator connections, vacuum lines, and small-diameter cooling runs.

• Inner diameter: 1" (25 mm); outer diameter: 33 mm
• 25-foot coil allows multiple custom cuts and runs
• Flexible and kink-resistant for tight engine bay routing

What fluids and environments is this silicone hose compatible with?

Outus silicone hose is formulated for a variety of thermal media and mild chemical exposure. It performs well with air, steam, hot water, most automotive coolants, and weak acids/alkalis up to 25% concentration, making it a versatile choice for workshop and vehicle use.

• Suitable for coolant, hot water, steam, and airflow applications
• Resistant to common automotive coolants and weak acids/alkalis (≤25%)
• Designed to reduce cracking and splitting compared with EPDM under heat

How easy is it to install and maintain the hose?

The hose is engineered for straightforward installation: it’s flexible, cuts cleanly, and seals reliably with standard clamps and fittings. Expect simple maintenance—inspect and replace when visibly worn—while benefiting from silicone’s improved anti-aging properties for longer service life.

• Flexible construction simplifies routing and clamp placement
• Cut-to-length coil eliminates extra joins and reduces leak points
• Use standard hose clamps and proper hose ends for secure seals

Who is this for: Mechanics, restorers, DIY car enthusiasts, and small-engine technicians who need a resilient, high-temperature hose for coolant, heater, and thermal fluid routing. Choose Outus when you want a 1" ID silicone hose that’s easy to customize, superior to EPDM in heat resistance, and suitable for a range of automotive and light industrial uses.