Watts 757-DNRS 2 1/2 - Part of the 757 Series Drain Fitting This 4 inch ACV is

This 4 inch ACV is armed with ArmorTek®

This 6 IN domestic wafer style butterfly valve

Channel 13 is a sloped section with an invert depth from 15

Z530-3NL-TC

Watts 757-DNRS 2 1/2 - Part of the 757 Series Drain Fitting This 4 inch ACV isThis 2 1 2 inch stainless steel double check valve backflow preventer assembly is designed to prevent the reverse flow of objectionable but not toxic water 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