Watts 800M4-FR 1 1/4 - Part of the 800M4FR Series mainline-siltfence a 5″ diameter heel-proof aluminum
Baker’s notes & crumb story
Description
a 5″ diameter heel-proof aluminum grate
ZN400K-4IG
ZN400J-2IC
Z668-4IC-C
Watts 800M4-FR 1 1/4 - Part of the 800M4FR Series mainline-siltfence a 5″ diameter heel-proof aluminumThis 1 1 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