WATTS 800M4QT 1" Anti-Siphon Backflow Preventer Watts 800 PVB 1 In Freeze Preven sprinkler -Precision controlled flush at pop-down

-Precision controlled flush at pop-down clears debris from unit

2 m) distance of throw

When replacing a sprinkler head

Adjustable 40° - 360° Pattern

WATTS 800M4QT 1" Anti-Siphon Backflow Preventer Watts 800 PVB 1 In Freeze Preven sprinkler -Precision controlled flush at pop-downSeries 800M4QT Anti Siphon Pressure Vacuum Breakers 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, tee handle or lever handle shutoffs, and test cocks for winterization draining. Series