It is used in disc brake where the master cylinder is mounted below the horizontal plane of the calipers and fluid drain back occurs from gravity and vibration, thereby cang excessive caliper piston retraction and a brake pedal stroke. The minimal 2LB residual pressure can fluid from ing back without cang the brakes to drag.
The valve has thread fitting in the ends, suitable for common 3/8-24 inverted flare brake line fitting.
Easy to install, but professional installation recommended.
Made of premium quality material, tough and durable in use.
Good choice to repl your old or worn pressure valve.