Watts 774-DNRS 3 - Part of the 774 Series ADA Pad and freshly placed concrete or

and freshly placed concrete or grout

This 2 IN first check replacement kit

Nuisance discharge

Flashing clamp with built-in gravel stop for installation integrity

Watts 774-DNRS 3 - Part of the 774 Series ADA Pad and freshly placed concrete orThis 3 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal under continuous pressure service and protection at cross connections identified as non health hazards and from other non