Watts LF909-OSY-FS 4 - Part of the LF909 Large Series ZC100F-8NH Stem Assembly

Stem Assembly

Low-Profile Dome Strainer: Poly-dome design offers large open area while keeping roofline neat and minimizing obstruction

6 mil thick Reinforced Fire Retardant Poly Sheeting is a reliable material designed to provide both fire resistance and exceptional durability in demanding environments

and crosses together

and is made of bright orange durable geotextile

Watts LF909-OSY-FS 4 - Part of the LF909 Large Series ZC100F-8NH Stem AssemblyThis 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 and from other contaminants found at the service line entrance. This assembly consists of an epoxy coated cast iron body, outside