Two Port Service Relay Valve 3/8'' Control Port (NPT) Two Port Service Relay Valve 3/8'' Contr...
Non-ABS four port service relay valves in several configurations. Control Port (NPT) = 3/8'' Reservoir Port (NPT) = 1/2'' Delivery Ports (NPT) = 3/8'' Nominal Crack Pressure = 4.0 PSI