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Z551-4NL-TG
UPC - 098268229868
UPC - 098268873306
This cover repair kit is used to repair or replace the cover on a 3/4 inch lead free reduced pressure zone assembly used to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure
Watts 757DCDA-DOSY-CFM 6 - Part of the 757DCDA Series Z100F-3NH Z551-4NL-TGThis 6 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non potable quality, but not toxic, 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. It is ideal for protection at cross connections identified as non health hazards such as on fire
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