Watts LF757NDCDA-OSY-GPM 4 - Part of the LF757DCDA Series R304 Detectable Warning Surfaces a self-locking polyethylene dome

a self-locking polyethylene dome

This product has an estimated lifespan of 6-10 years

This 12 inch lead free frost proof automatic draining wall hydrant is used in commercial and residential applications to provide freeze protection for the external water supply

0 gallons and features a durable expansion membrane that prevents contact of the water with the air in the tank

Watts LF757NDCDA-OSY-GPM 4 - Part of the LF757DCDA Series R304 Detectable Warning Surfaces a self-locking polyethylene domeThis 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