Watts LF757NDCDA-OSY-GPM 4 - Part of the LF757DCDA Series R304 Detectable Warning Surfaces or premium flooring—so the drain

or premium flooring—so the drain becomes part of the floor rather than an interruption

flush finish

a self-locking polyethylene dome

ZB415H-4NH

Features Standard construction includes Z3 sealed spring cage and stainless steel corrosion resistant adjusting and cage screws for accessible outdoor or pit installations

Watts LF757NDCDA-OSY-GPM 4 - Part of the LF757DCDA Series R304 Detectable Warning Surfaces or premium flooring—so the drainThis 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