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

IPS-threaded outlet for standard plumbing connection

The excess water is contained in the heavy duty butyl bladder preventing tank corrosion and waterlogging problems

one piece valve plunger

Specifications Compatible Series or Model 767FR Compatible Size Used On 1 1/4 to 2 IN Kit Contents Check Disc Assembly (Disc and Disc Holder)

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

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