The galvanized option is galvanized before and after weaving and has an estimated lifespan of 6-10 years
Cover O-ring Kit Type Second Check Kit Lead Free YES Product Group BACKFLOW KITS UPC - 098268374308
It works with the Slim Channel Drain and is ideal for draining light flows from pool and spa decks
one relief upper and one lower stem o-ring
6 BAR at 99 degree C Retainer Cover Material Lead Free Cast Copper Silicon Alloy Retainer Cover Type Tapped with Closure Plug Screen Material Stainless Steel Screen Size 20 MESH Seat Material Does Not Apply To Product Series LF777SI Strainer Type Wye WOG Rating 400 PSI at 210 degrees F Specification Sheet - LF777SI
Watts 1/2 B911 (PRESS XTHD) - Part of the 911 Series ZA100F-8NH The galvanized option is galvanizedThis 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 backflow preventer, model 9D, and a bronze feed water pressure regulator, model BD1156F, in one pre assembled unit. The high capacity fill valve provides quick system filling and purging.
