Watts 757DCDA-OSY-FXG-CFM 4 - Part of the 757DCDA Series geogrid with internal straps that add

with internal straps that add additional support for installation and removal

heavy duty

This 3/8 inch lead free dual check vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply

It provides protection against backsiphonage for health hazard installations requiring non-continuous pressure

Watts 757DCDA-OSY-FXG-CFM 4 - Part of the 757DCDA Series geogrid with internal straps that addThis 4 IN double check detector backflow preventer assembly prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. It is designed for non health hazard applications and may be installed under continuous pressure service to protect against both backpressure and backsiphonage. It is used primarily on fire sprinkler lines when it is necessary to monitor unauthorized use of water and includes