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

Outus 1" ID, 10ft blue silicone heater hose is a flexible, high-temperature resistant coolant and radiator hose supplied in a 10-foot coil for cutting to fit custom engine cooling and heater lines.

This reinforced silicone hose combines heat endurance and chemical resistance with pliability for automotive and industrial cooling applications. Built with a polyester braid reinforcement, it resists cracking and aging better than many rubber compounds while operating across a very wide temperature range. The coil format lets you trim exact lengths for heater cores, radiators, vacuum lines, or replacement runs where a precise fit is needed.

How hot can this silicone heater hose handle without failing?

The Outus silicone hose is engineered for extreme temperatures and is rated from -40°F to 400°F (-40°C to 200°C). This allows it to perform reliably in both freezing conditions and the high-heat environments near engines or steam equipment. Slight softening or expansion at peak temperatures is expected for silicone and does not impair function.

• Working pressure up to 85 PSI
• Burst pressure approximately 142 PSI
• Temperature tolerance -40°F to 400°F (-40°C to 200°C)
• Designed to withstand short-term deformation without losing seal performance

Will this hose fit my heater core or radiator setup?

This hose has a 1" (25 mm) inner diameter and a 33 mm outer diameter, supplied as a single 10-foot coil so you can cut lengths for custom installations. Its dimensions suit many aftermarket and OEM heater and coolant connections, but check your fittings and clamps for compatibility before installation. The flexible construction makes routing through tight engine bays easier than rigid piping.

• Inner diameter: 25 mm (1")
• Outer diameter: 33 mm
• Supplied length: 10 feet for custom cuts
• Flexible and kink-resistant for tight routing

What fluids and conditions is the hose compatible with?

Outus silicone hose is suitable for coolant, hot water, steam, compressed air and weak acids/alkalis up to 25% concentration. Its silicone composition offers improved resistance to aging and common automotive coolants compared with standard EPDM hoses. Avoid exposure to strong solvents or fuels that are not listed as compatible.

• Suitable for coolant and antifreeze mixtures
• Compatible with steam and hot water applications
• Resistant to weak acids and alkalis (≤25%)
• Not recommended for prolonged contact with strong solvents or fuels

How simple is installation and what should I expect during maintenance?

Installation is straightforward: cut the coil to the length you need, position on fittings, and secure with appropriate clamps. The hose’s flexibility and reinforcement help prevent kinks and maintain a reliable seal under pressure. Periodic visual inspection for abrasion, clamp integrity, and aging will extend service life.

• Cut-to-fit 10 ft coil allows exact length control
• Use standard hose clamps sized for 1" ID hoses
• Inspect clamps and hose ends periodically for wear
• Replace if significant cracks, cuts, or severe deformation appear

Who is this for: The Outus 1" ID, 10ft silicone heater hose is aimed at DIY mechanics, car restorers, performance tuners, and light-industrial users who need a durable, heat-tolerant, and easy-to-cut coolant or heater hose. If you require a flexible replacement for radiator, heater, or vacuum lines that endures wide temperature swings and resists aging better than conventional rubber, this hose is a practical choice.