WATTS® First Check Kit, For Use With: Model 957/LF957RPDA/957RPDA 2-1/2 to 4 in Reduced Pressure Zone Assembly
This first check repair kit provides all the parts necessary to repair or replace the first 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 first check module, check module O-ring and EPDM disc elastomer.
WATTS® First Check Kit, For Use With: Model 957/LF957RPDA/957RPDA 2-1/2 to 4 in Reduced Pressure Zone Assembly
This first check repair kit provides all the parts necessary to repair or replace the first 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 first check module, check module O-ring and EPDM disc elastomer.
