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Raised external water dam to establish controlled overflow level
airborne dirt and smog
Watertight Inlet Options: Includes a downspout gasket suitable for cast iron or PVC inlets
A Step Down Connector Fitting is designed to work with the following Geocomposite Drains by American Wick Drain
and other costly water damage
Watts 957-NRS-S-SS 4 - Part of the 957 Series dura-skrim-selector Raised external water dam toThis 4 IN reduced pressure zone assembly backflow preventer helps prevent the reverse flow of fire protection substances and water of non potable quality from being pumped or siphoned into potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. This extremely compact and lighter than a traditional designed assembly is approved for horizontal installation as long as the
US$ 1937.50
US$ 525.00