RK 85X/87X-RT 4 LEAD FREE

This complete rubber repair kit includes the parts necessary to repair or replace check rubber parts of a 4 inch double check valve assembly, double check detector assembly, reduces pressure zone backflow assembly series 850/860/870/880. Kit includes 2 Check Discs, 2 Cover O-Rings, 2 Bearing Sockets, 2 Seat O-Rings, Cover Plate O-Ring, Sensing Line Cover Gasket, and Mounting Hardware. All parts are genuine and original to the valve.