Wilkins: 8" - 12" - Total Relief Valve Repair Kit for a 375 / 375DA {OR} 8" - 10" 375A / 375ADA / 375AST / 475 / 475STDA / 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