Watts 1/2 BD911T-M3 - Part of the BD911 Series R304 Detectable Warning Surfaces Our bottom fence barrier is

Our bottom fence barrier is made in the USA from 100% High-density polyethylene (HDPE)

ZN1930-4NL

4 IN No Hub Outlet

Shallow Profile is 5-1/2 in

Watts 1/2 BD911T-M3 - Part of the BD911 Series R304 Detectable Warning Surfaces Our bottom fence barrier isThis 1 2 inch bronze combination fill valve and backflow preventer is for use in commercial and residential hydronic heating systems to provide make up water to the boiler, and prevent backflow when supply pressure falls below system pressure. It consists of a bronze model 9D backflow preventer and a bronze feed model BD1156F water pressure regulator in one pre assembled unit. The high capacity fill valve provides quick system filling and purging. It