2 Way Air Valve Fabco 18HL 4 Water Pump Bearing Application Use Case Water Truck Length:4 3 8" Application Use Case Water Truck Cab Air Controls Manual directional control for compatible truck mounted pneumatic systems Double Acting Pneumatic Actuators Alternately supplies and exhausts two actuator ports Air Operated Spray Valve Controls Manual directional control for compatible double acting spray valve actuators PTO & Auxiliary Pneumatic Controls Manual 4 way control where MJTV 4 pressure No Break Copolymer Polypropylene Nut Material Black Acetal Copolymer Nut Manufacturing Process Machined Bolt Material 6061 T6511 Aluminum Extrusion Bolt Specification ASTM B211 Bolt Manufacturing Process Machined Diaphragm Outside Diameter 6 1 4" Country of Manufacture USA Included Components Action: Detented Hardened & plated steel shaft with unique connection to spool results in positive shifting