Watts RK 773 C Part of the RK 773 Series geogrid Check O ring Kit Type First Check O ring Kit Type First Check Kit Lead Free YES Product Group BACKFLOW KITS UPC 098268796285 Specifications Body Material Iron Brand Watts EAN 098268559965 Inlet Connection Size 3 4 IN Inlet Connection Type Female Threaded Inlet Thread Type NPTF Lead Free Not In Scope Maximum Working Pressure PSI 20 Outlet Connection Size 3 4 IN Outlet Connection Type Female Threaded Outlet Thread Type NPTF Part Number F358553 Pressure Range Does Not Apply to Product Pressure Relief Setting PSI 30 Series 374A Specification Sheet 174A This kit consists of a cover and a cover O ring This valve cover repair kit is for double check series 773 which is designed to protect drinking water supplies from dangerous cross connections in accordance with national plumbing codes and water authority requirements