Watts 800M4QT-SH 1 - Part of the 800M4QT Series ZA100F-6NH or indirect waste require reliable

or indirect waste require reliable drainage and resistance to clogging or roof membrane failure

This 1 by 1 inch lead free dual check valve backflow preventer helps prevent the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets

It consists of chrome plated lead free construction

high flow capacity

Crimp double union end connections for PEX tubing

Watts 800M4QT-SH 1 - Part of the 800M4QT Series ZA100F-6NH or indirect waste require reliableThis 1 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, stainless steel tee handle shutoff, and test cocks for winterization