Watts 757-OSY 3 - Part of the 757 Series Access Tile and optional top finishes —

and optional top finishes — cast iron

It features a sensitivity adjuster to eliminate any vibrating condition that may arise from critical flow requirements

Z451B-2NH-B-CL

UPC - 098268386790

Also Available: Galvanized Steel Gopher WireFor projects that require a more economical option

Watts 757-OSY 3 - Part of the 757 Series Access Tile and optional top finishes —This 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 for protection at cross connections identified as non health hazards and from other contaminants found at the service line