Watts 800M4-FR-SH 3/4 - Part of the 800M4FR Series dura-skrim-selector weathering

weathering

ASME approved

and extended service life

Locking mechanism secures temperature setting

Watts 800M4-FR-SH 3/4 - Part of the 800M4FR Series dura-skrim-selector weatheringThis 3 4 inch freeze resistant 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, a built in relief valve to protect the internal components and