RK8-375 (Wilkins) | 8 - 10 Inch | 375/475 RP Relief Valve Rubber Kit With Springs

This is 8 to 10 Inch Zurn Wilkins 375/475 Reduced Pressure Zone Backflow Preventer Relief Valve Rubber Kit With Springs. Kit Includes Relief Valve Diphram, Relief Valve Seat Disc, Upper Plunger O-Ring, Seat O-Ring, RV Piston O-Ring, And RV Spring. | Wilkins | RK8-375