WATTS® Second Check Kit, For Use With: Model 957 2-1/2 to 4 in Reduced Pressure Zone Assemblies and 957RPDA Reduced Pressure Detector Assembly
This second check repair kit provides all the parts necessary to repair or replace the second check on a 2 1/2 to 4 inch reduced pressure valve assembly backflow preventer, model 957 and reduced pressure detector assembly backflow preventer, model 957DCDA. This kit consists of second check module, check module O-ring and EPDM disc elastomer.
WATTS® Second Check Kit, For Use With: Model 957 2-1/2 to 4 in Reduced Pressure Zone Assemblies and 957RPDA Reduced Pressure Detector Assembly
This second check repair kit provides all the parts necessary to repair or replace the second check on a 2 1/2 to 4 inch reduced pressure valve assembly backflow preventer, model 957 and reduced pressure detector assembly backflow preventer, model 957DCDA. This kit consists of second check module, check module O-ring and EPDM disc elastomer.
