Wilkins: 2 1/2" - 4" - Rubber Parts Kit for a:
• 2½" - 4": 375ADA / 375ASTDA
• 4": 375DA / 475DA / 475STDA
Kit includes:
2 Check Discs, 2 Check O-Rings, 8 Poppet Bolt O-Rings,RV Diphragm, Relief Valve Seat Disc, Upper Plunger O-Ring, Seat O-Ring, and Piston O-Ring, and Rubber Parts for Bypass Assembly
