Watts 757-OSY 4 - Part of the 757 Series nwgf UPC - 098268017571

UPC - 098268017571

and other high-demand environments

UPC - 098268452310

making it ideal for demanding environments that prioritize fire protection and durability

This 1 inch lead free automatic reseating temperature and pressure relief valve with a 6 inch thermostat is installed directly in tank tapings and is used in commercial applications to provide automatic temperature and pressure protection for hot water supply tanks and hot water heaters

Watts 757-OSY 4 - Part of the 757 Series nwgf UPC - 098268017571This 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