Watts Brass & Tubular 1156F 1/2 1/2 Boil Feed Regulator
1/2"" Female Pipe Thread Inlet & Outlet & 1/2"" Female Pipe Thread Bottom Connection, Boiler Feed Water Regulator, 1 For Installation Of Expansion Tank, Fill The Boiler & System Piping With Water & Maintain Water Pressure, Provides Make Up Water To The System In The Event Of System Leaks, Fast Fill Feature Speeds Filling & Purging Of Air From The Piping On The Initial Fill, Manual Purge Lever Included, Stainless Steel Strainer Protects Valve Disc From Fouling, Tight Seating Check Feature.