Watts 1/2 BD911T-M3 - Part of the BD911 Series Inserta Tee Lightweight design suitable for rooftop

Lightweight design suitable for rooftop environments

fabric rolls of varying widths to fit your application

It features a flashing clamp with integral gravel guards to ensure reliable high volume drainage and a 6 inch no hub outlet for simple installation

and finishes to meet the needs of modern flat roof systems

Z551-2NL-Y

Watts 1/2 BD911T-M3 - Part of the BD911 Series Inserta Tee Lightweight design suitable for rooftopThis 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