Watts 709DCDA-DOSY-GPM 3 - Part of the 709DCDA Series ZA100F-3NH Operation calibrated at factory to

Operation calibrated at factory to eliminate field calibration

has an iron body with 1/16 perforated screen

It has a satin chrome finish

ZN400J-2IG

and a sediment bucket for easy maintenance

Watts 709DCDA-DOSY-GPM 3 - Part of the 709DCDA Series ZA100F-3NH Operation calibrated at factory toThis 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. It is ideal for protection at cross connections identified as non health hazards such as on fire protection systems and from other contaminants found at the service line entrance. It