The Gates 25' Silicone Straight Heater Hose is the perfect choice for high temperature applications such as radiators and heaters. This hose is designed to exceed SAE 20R3 class A performance and offers exceptional temperature resistance from -65 °F to +350 °F. It is extremely durable and suited for heavy duty truck and bus applications. The centerline length is 300" and the hose inside diameter is 0.75". This hose is ideal for use in extreme temperatures and Heavy Duty applications. FleetPride is your First Click in Heavy Duty®.