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For traps with repaceable seats
This 1 inch total relief valve replacement kit is used for repairing the parts to the relief valve series SS009 which prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure
Its durable cast-iron construction ensures long service life
and other costly property damage
Epoxy-coated cast iron body with anchor flange and dual weepholes for double drainage
Watts 757NDCDA-BFG-CFM 3 - Part of the 757DCDA Series Egress System For traps with repaceable seatsThis 3 IN, N pattern, double check detector backflow preventer assembly prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of two independently operating tri link check valves, two UL FM butterfly shutoff valves, and four test cocks. It has a cubic foot meter. It features a stainless steel housing and sleeve and is 70 percent lighter than traditional