Wilkins: 2 1/2" - 6" - Total Relief Valve Repair Kit for a 375 / 375A / 375AST / 475 / 475ST Reduced Pressure Zone Assembly
Kit Includes:
Relief Valve Upper Stem, Lower Plunger, RV Seat, Assembly Bolt & Retaining Washer, RV Diphragm, Relief Valve Seat Disc, Upper Plunger O-Ring, Seat O-Ring, and Piston O-Ring, and RV Spring
