Bobrick 2111 ClassicSeries Surface-Mounted Soap Dispenser, 40oz, Stainless Steel Corrosion resistant valve dispenses commercially marketed all-purpose hand soaps Vertical tank is satin finish stainless steel; soap refill window Concealed wall fastening; hinged filler top requires special key to open Vandal resistant Valve operates with less than 5 lbs of force (22.2 N) Corrosion-Resistant Dispenes commercially marketed all-purpose hand soaps 40 fluid ounce Capacity Vandal-Resistant Valve operates with less than 5 lbs. of force