Watts 4 1/8 in x 5 3/8 in Boiler Feed Valve, FNPT x Sweat Union - S1156F ASI-Simplicity Model comes with a hydro-dynamic

Model comes with a hydro-dynamic disc for Increased flow performance and an over-sized liner face that maximizes flange surface contact

Sturdily built and completely self contained

Molded Stainless Steel Waste Receptacle 14

7 5/8" Sleeve Assy

Watts 4 1/8 in x 5 3/8 in Boiler Feed Valve, FNPT x Sweat Union - S1156F ASI-Simplicity Model comes with a hydro-dynamicFor use in hydronic heating systems, this boiler feed valve helps to maintain water pressure at all times by filling boilers and piping systems with water. The cast iron valve also helps to permit rapid system fill and sustained air purge flow. In the event of system leaks, it helps to provide make up water to the system.