WATTS® Second Check Kit, For Use With: Model 757DCDA/757NDCDA 2-1/2 to 4 in Double Check 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 double check valve assembly backflow preventer, model 757, and double check detector assembly backflow preventer, model 757DCDA. This kit consist of a first check module, check module O-ring, and red silicone disc elastomer.
WATTS® Second Check Kit, For Use With: Model 757DCDA/757NDCDA 2-1/2 to 4 in Double Check 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 double check valve assembly backflow preventer, model 757, and double check detector assembly backflow preventer, model 757DCDA. This kit consist of a first check module, check module O-ring, and red silicone disc elastomer.
