Watts 757N-BFG 2 1/2 - Part of the 757 Series Woven Fabric 2 inch Watts Model 77SI

2 inch Watts Model 77SI

ZM400SH-3NL

while the flashing clamp and integral gravel stop ensure a secure

lightweight modular sections for faster installation

Fabrication Instructions

Watts 757N-BFG 2 1/2 - Part of the 757 Series Woven Fabric 2 inch Watts Model 77SIThis 2 1 2 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