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This 3 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure
anchor flange for secure installation
UPC - 098268607994
100 wire mesh liner
Ideal for boiler rooms
Watts 994-DOSY 6 - Part of the 994 Series mainline-adatile This 3 inch double checkThis 6 inch 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 the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single access cover for in line repairs. It is ideal for
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