905485 (Febco) | 8 - 10 Inch | 856ST/876ST DC Second Check Repair KitThis Check Kit Includes The Parts Necessary to Repair or Replace The Second Check Module of an 8 to 10 Inch In Line Double Check Valve Detector Assembly 856ST And 876VSTor The Second Check For an 8 Inch Vst Model Double Check Valve Detector Assembly. Kit Includes Check Module, Mounting Hardware, Cover O Ring, Bearing, And Bearing Socket. All Parts Are Genuine And Original to The Valve. Febco 905485