Watts 757-PIVXOSY 8 - Part of the 757 Series detectable-warning-mat-finder one RV upper stem O-ring

one RV upper stem O-ring

The pressure relief is set at 90 psi (621 kPa) with corresponding high pressure ratings up to 2

This 1 1/2 to 2 inch cover kit is for series 709

It features a lead free brass body with NPT threaded end connections

It consists of a lead free bronze body construction silicone rubber check valve disc

Watts 757-PIVXOSY 8 - Part of the 757 Series detectable-warning-mat-finder one RV upper stem O-ringThis 8 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