Watts 957-OSY-GXG-FS 2 1/2 - Part of the 957 Series Basement Window Well designed to prevent sediment from

designed to prevent sediment from entering local waterways and beyond the jobsite perimeter

Its white porcelain-enameled cast iron bowl provides a smooth

The high ratio of the diaphragm to the orifice provides excellent performance and stability at a low reduced pressure

and other infiltrators that can clog pipes

Watts 957-OSY-GXG-FS 2 1/2 - Part of the 957 Series Basement Window Well designed to prevent sediment fromThis 2 1 2 IN lead free stainless steel reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. It has OSY groove by groove gate valves that show if the valve is open or closed and prevent stem corrosion. The easy maintenance assembly consists of positive seated torsion spring check modules, bottom mounted differential pressure relief valve, FM