Febco: 8" - First or Second Check Spring Module for an 870 DC / 870V DC {OR} Second Check Spring Module for an 880 RP / 880V RP {OR} 8" - 10" (1st or 2nd) 850 Double Check / (2nd) 860 Reduced Pressure Zone / 800 Single Check Valve
Kit Includes: Spring Assembly, Load Pin, 2 Retainer Clips, and Cover O-Ring
