Watts LF757DCDA-DOSY-CFM 4 - Part of the LF757DCDA Series ZA100F-6NH and red silicone disc elastomer

and red silicone disc elastomer

Features Gauge tapping with gauge

This assembly without the shutoff valves consists of a lightweight stainless steel body

Need to make the connection from channel drain to drain pipe

ZB400E-3IP

Watts LF757DCDA-DOSY-CFM 4 - Part of the LF757DCDA Series ZA100F-6NH and red silicone disc elastomerThis 4 IN lead free 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