FEBCO 905277 - BULK HEAD FITTING 1/4" NPT X 1 1/4" UNF 1 EA. FOR #1 OR #2 CHECK COVERS FOR 6" - 10" 850 DC / 870 DC / 876 DCDA / 880 RP / LF880 RP *AND* 2 1/2" - 10" 856 DC *AND* VALVE BODY OUTLETS FOR 2 1/2" - 10" 856 DCDA / LF876 DCDA / LF886 RPDA *AND* 6" - 10" 850 DC / 870 DC / LF870 DC / 880 RP / LF880 RP *AND* INLET COVER FOR 6" - 10" LF870 DC / 876VST DCDA / LF876 DCDA

FEBCO 905163 - CHECK VALVE RUBBER KIT 4" FOR 850 DC / 856 DCDA / 870 DC / 870V DC / 876 DCDA / 876V DCDA

FEBCO 905153 - #1 OR #2 CHECK DISC ASSEMBLY ONLY FOR 4" 850 DC / 856 DCDA / 870 DC / 870V DC / 876 DCDA / 876V DCDA

FEBCO 905148 - #1 OR #2 CHECK SPRING MODULE FOR 4" 856 / 876V DC