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WATTS® First Check Kit, For Use With: Model 774/774DCDA Double Check Valve Assemblies
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 double check valve assembly backflow preventer, model 774 and double check detector assembly backflow preventer, model 774DCDA. This kit consists of a complete number one cam check with a check O-ring.
WATTS® First Check Kit, For Use With: Model 774/774DCDA Double Check Valve Assemblies
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 double check valve assembly backflow preventer, model 774 and double check detector assembly backflow preventer, model 774DCDA. This kit consists of a complete number one cam check with a check O-ring.
