The Roval Model 20333 automatic deck mounted soap dispenser holds 1.6L of liquid soap and dispenses in cycles of single shot volume of approximately 1.25ml. Operation is initiated by hands-free sensor controlled by microprocessor digital circuitry powered by four (4) D size 1.5 V batteries (supplied by others) in a screw-locked compartment located under counter. Unit has type 304 stainless steel alloy with a polished finish over all exposed surfaces. Dispenser has LED’s to indicate function, battery condition and soap supply level on front face and mounts on a vanity deck through 25 diameter hole.