Watts 757N-BFG 4 - Part of the 757 Series ZA100F-3NH each affixed to an adapter

each affixed to an adapter for easy installation on test cocks

Channel 11 is a sloped section with an invert depth range from 6

In the above Picture 2: The barrier was installed a few inches away from the foundation wall to allow for a an occasional visual inspection to ensure that water was not flowing around the barrier and pooling against the foundation wall

UPC - 098268346947

seat and disc assembly

Watts 757N-BFG 4 - Part of the 757 Series ZA100F-3NH each affixed to an adapterThis 4 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