Outus Silicone Heater Hose 1" ID 10ft Blue — Reinforced High-Temp Coolant Line

Outus 1" ID, 10 ft silicone heater hose is a flexible, high-temperature coolant and heater line made from reinforced silicone for long-lasting performance in automotive and industrial cooling systems.

This 10-foot coil of blue silicone hose is built to replace or upgrade factory heater and radiator lines, offering improved aging resistance and temperature tolerance compared with standard rubber hoses. Its reinforced polyester braid and soft, yet resilient construction let you cut custom lengths and fit a range of 1" inner-diameter ports while resisting cracking, kinking, and many common coolant fluids.

What temperatures and pressures can this silicone heater hose handle?

The Outus silicone hose is formulated to remain stable across extreme temperatures and repeated thermal cycles, making it suitable for demanding under-hood conditions. It is rated for continuous service from -40°F to 400°F (-40°C to 200°C) and tested to withstand typical operating pressures used in cooling systems.

• Working pressure up to 85 PSI for routine system loads.
• Burst pressure approximately 142 PSI for safety margin under stress.
• Temperature range covers sub-freezing starts to high-temperature engine zones.

How does the hose fit and install on vehicles?

This hose comes as a 10 ft coil with a 1" (25 mm) inner diameter and a 33 mm outer diameter, allowing you to trim and route it precisely where needed. Its flexibility and kink resistance make tight bends easier, and the smooth inner wall helps ensure reliable sealing with standard clamps and fittings.

• Supplied in a continuous 10-foot length for custom cutting.
• Direct-fit size for common 1" heater and coolant ports.
• Flexible construction reduces need for extra fittings when routing.

Which fluids and environments is this hose compatible with?

Designed as a multipurpose coolant and heater hose, the Outus silicone hose resists many fluids and mild chemical exposure encountered in automotive and light-industrial settings. It performs well with air, steam, hot water, typical engine coolants, and weak acid/alkali solutions up to 25% concentration.

• Suitable for antifreeze/coolant blends and hot water circulation.
• Resistant to steam and compressed air applications in many systems.
• Not intended for strong acids/alkalis or highly abrasive fluids.

Why choose silicone over standard rubber hoses for heater lines?

Silicone maintains elasticity and resists aging better than EPDM and other rubber compounds, which helps prevent brittle cracking over time. While silicone can soften or slightly expand at very high temperatures, its reinforced braid keeps dimensions stable and extends service life in high-heat zones.

• Superior high-temperature and anti-aging performance versus rubber.
• Reinforced polyester braid adds strength without sacrificing flexibility.
• Easy to cut and install for maintenance or performance upgrades.

Who is this for: The Outus 1" ID, 10 ft silicone heater hose is aimed at DIY mechanics, professional technicians, and performance builders who need a durable, customizable coolant or heater line. It’s ideal for older vehicles replacing brittle factory hoses, custom installations requiring precise routing, and light-industrial uses that demand wide temperature tolerance and chemical resistance.