Watts LF709-DOSY 3 - Part of the LF709 Series Strata Systems White epoxy-coated cast iron body

White epoxy-coated cast iron body for long-term durability

or use of a gauge

Dura-Coated Cast Iron Body with Bottom Outlet: Offers strength

6″ wide reveal with 4″ throat

Watts LF709-DOSY 3 - Part of the LF709 Series Strata Systems White epoxy-coated cast iron bodyThis 3 inch lead free double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. Its compact modular design facilitates easy maintenance with a single access cover for in line repairs. It is ideal for protection in continuous pressure piping applications and at cross connections identified as non health hazards. This assembly