WW0888825, Watts, 6 Backflow Preventer Cover Valve Repair Kit, 774 And 774Dcda

This 6 IN cover repair kit for series 774 and 774DCDA prevents the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. This kit consists of a cover, grooved coupler and a gasket. It is designed for installation on applications identified by local authorities as non-health hazard, such as on fire protection systems.