Proflow’s 400 series rubber hose is avalable in blue or lack and is designed to be used with E85, diesel, methanol, coolant, oil, air, transmission fluid and vacuum. Its synthetic nylon yarn reinforcement allows it to be used in applications of up to 250 PSI and its smooth synthetic rubber cover makes it perfect for automotive and marine applications. To ensure a perfect fit, use Proflow 400 / 510 Series fittings and adaptors. It is recommended that in high pressure and temperature applications, the use of a clamp is required (see below). Not suitable for submersible applications. 

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Note: Hose clamps must be used on all applications above working pressures of 55 PSI and temperatures above 65°C.

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Due to the use of unknown additives in some fuel blends, we cannot guarantee our rubber hose’s compatibility with all fuels unless otherwise stated. Please use Proflow’s 200 Series PTFE hose for all other types of fuel.

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