Watts 800M4QT-SH 1 1/2 - Part of the 800M4QT Series Strip Drian and adaptability to unique roof

and adaptability to unique roof designs

This 1/2 IN angle balanced pressure-duplex phosphor diaphragm is a highly sensitive modulation unit thermally programmed to provide accurate steam conserving operation at all pressure temperature points within its range of operation

Package Contents – Kit features a 6″ neutral channel

This 3/4 inch reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements

Watts 800M4QT-SH 1 1/2 - Part of the 800M4QT Series Strip Drian and adaptability to unique roofThis 1 1 2 inch anti siphon pressure vacuum breaker backflow preventer helps prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O ring seal, a lightweight plastic disc float, lever handle shutoff, and test cocks for winterization draining.