These valves are used with a brake applications where the master cylinder is located under the floor
This adjustable proportioning valve features pressure adjustments ranging from 100-1000 PSI and provides for a maximum decrease of 57% in line pressure
This adjustment lets you fine tune the front to rear braking balance by proportionately decreasing the rear (or in some cases the front) brake line pressure
Features two side ports and standard 1/8 27 npt in/out ports.