Watts LF909-NRS-FS 6 - Part of the LF909 Large Series Inserta Tee threaded female inlet and outlet

threaded female inlet and outlet connection

Double switch assembly

combined with its diamond-patterned reinforcement

This 1 IN lead free dual check valve backflow preventer helps prevent the reverse flow of polluted water from residential fire sprinkler systems from entering into the potable water supply

Includes diaphragm

Watts LF909-NRS-FS 6 - Part of the LF909 Large Series Inserta Tee threaded female inlet and outletThis 6 inch lead free reduced pressure zone backflow preventer assembly prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It is ideal for protection in continuous pressure piping applications and at cross connections identified as health hazards and from other contaminants found at the service line entrance. This assembly consists of an epoxy coated cast iron body, non