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This 3 IN lead free stainless steel reduced pressure zone assembly backflow preventer has NRS groove by groove gate valves that work well in limited headroom situations
bottom plug and spring assembly
a polypropylene dome bottom strainer to restrict debris
Choose a product designed to prevent typical headaches and deliver superior performance and aesthetics
Watts 957-NRS-S-FS 4 - Part of the 957 Series Basement Window Well This 3 IN lead freeThis 4 IN reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. This extremely compact and lighter than a traditional designed assembly is approved for horizontal installation as long as backflow assembly is installed in accordance with the direction of the flow arrow. This assembly consists of a stainless steel body with quick access sleeve,
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