Watts 8 1/2 in x 5 1/4 in Boiler Feed Valve w/Backflow Preventer, FNPT and NPT Union - B911-M3 Capacity-16 oz Steel to steel support hinges

Steel to steel support hinges with pneumatic gas shock mechanism that opens and closes unit smoothly

solidly fused plastic laminate with matte-finish melamine surfaces

Lavatory-Mounted

Bradley S15-123H Panel-Left-Wall-Sandtrap Replacement Part

Material Vitreous China

Watts 8 1/2 in x 5 1/4 in Boiler Feed Valve w/Backflow Preventer, FNPT and NPT Union - B911-M3 Capacity-16 oz Steel to steel support hingesCombination backflow preventer and feed water pressure regulator in one pre assembled unit, this WATTS boiler feed valve with backflow preventer is for use in residential and commercial hydronic heating systems. Model provides make up water to the boiler and can prevent backflow when the supply pressure falls below the system pressure.