Watts 757N-OSY 4 - Part of the 757 Series Window Well Cover UPC - 098268608816

UPC - 098268608816

UPC - 098268606805

brass drain tap

Male SAE Threads

or smaller wet environments

Watts 757N-OSY 4 - Part of the 757 Series Window Well Cover UPC - 098268608816This 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non potable quality from being pumped or siphoned into the potable contaminated water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and contaminated water authority requirements. It is ideal for protection at cross connections identified as non health hazards and from other