Febco: 4" - Seat Ring / Arm Assembly for an 850 DC / 856 DCDA / 870 Double Check / 870V DC / 876 DCDA / 876V Double Check Detector Assembly / 860 Reduced Pressure Zone / 880 RP / 880V RP / 800 Single Check Valve
Kit Includes:
Seat Ring, Arm Assembly, Seat Gasket, Cover O-Ring, and Mounting Nuts
