Proflow Residual Pressure Valve, Red Anodised, 10 psi, Drum Brakes, 1/8 in. NPT Female Inlet/Outlet, Each

Residual pressure valves are a one-way check valve used to keep a small amount of pressure in your brake lines, helping the brakes engage more quickly and reduces pedal travel. The 2 PSI version is usually used when the master cylinder is lower than the brake calipers. The 10 PSI version is to be us

Part number: PFE393