A Walk Behind Scrubber Drier is a machine used for cleaning floors, typically in commercial or industrial settings. It is designed to scrub, clean, and dry hard surfaces like concrete, tile, and vinyl. The machine consists of a motorized scrubbing head that rotates or oscillates, a water tank, a cleaning solution tank, and a vacuum system to suck up dirty water. The operator walks behind the Walk Behind Scrubber Drier and maneuvers it to clean the floor.