Watts LF909-LF-FS 4 - Part of the LF909 Large Series Z100F-8NH NPT threaded end connections

NPT threaded end connections

The made in USA manufacturer

Watts 5 IN Model ICV-125-2-2-T

standardized thread connections for different pipe sizes and types

Watts LF909-LF-FS 4 - Part of the LF909 Large Series Z100F-8NH NPT threaded end connectionsThis 4 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. This assembly without gate valves consists of an epoxy coated cast iron body, captured spring check valves, replaceable seats,