Febco: 8" - #1 or #2 Check Spring Module for an 870/ 870V DC {OR} #2 Check Spring Module for an 880/ 880V RP {OR} 8" - 10" (#1 or #2) 850 DC & (#2) 860 RP/ 800 Single Check Valve.
Febco: 8" - Seat Ring / Arm Assembly for an 870 DC / 870V DC / 876 DCDA / 876V DCDA / 880 RP / 880V RP {OR} 8" - 10" 850 DC / 856 DCDA / 860 RP / 800 SCV