Watts 774-OSY 3 - Part of the 774 Series Drain Fitting IPS-threaded outlet for standard plumbing

IPS-threaded outlet for standard plumbing connection

It features a black enamel steel case

This 3/4 inch hydronic package kit is used for commercial and residential closed loop hydronic heating systems

This 1 1/4 through 2 IN 800M4 total repair kit provides all the parts necessary to repair the major internal components of the applicable pressure vacuum breaker assembly

909 Compatible Size Used On 6 IN Kit Contents Disc and Spring Assembly

Watts 774-OSY 3 - Part of the 774 Series Drain Fitting IPS-threaded outlet for standard plumbingThis lead free double check valve assembly backflow preventer, 3 inch, is designed to prevent the reverse flow of contaminated 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 hazard applications and from other contaminants