Wilkins: 4" 450DA Series Lead Free Double Check Detector Assembly with OSY Gate Valves and Gallons per Minute Meter
SKU 4-450DA {A}
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Application:
Designed for installation on water lines in fire protection systems to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Assembly shall provide protection where a potential health hazard does not exist.