Watts 8 1/2 in x 5 1/4 in Boiler Feed Valve w/Backflow Preventer, FNPT x Sweat Union - B911S-M3 Toilet Paper Holders Mat Width: 4 ft

Mat Width: 4 ft

the unit measures 12-5/8 inches in width by 11 inches in height and extends from the mounting surface by 2-3/8 inches once it is properly installed

Translucent cover allows for a view of the paper supply

Pallets feature excellent chemical and corrosion resistance

Watts 8 1/2 in x 5 1/4 in Boiler Feed Valve w/Backflow Preventer, FNPT x Sweat Union - B911S-M3 Toilet Paper Holders Mat Width: 4 ftCombination 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.