WILKINS 375/475 - 2 1/2"-6" - RV Complete Internals Repair Kit - (RK212-375RVCI)
 
Complete Relief Valve Internals for the following assemblies: 375, 375A, 375AST OR 475
 
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