BatteryShield™ automated wet battery protection system. From the automated brush on/off system to the ergonomic, full-activation handle to the self-adjusting splash skirt, the S-20 provides high value in a package that is Purpose Built™ for: Daily scrubbing of small to medium facilities, small rooms, detail and edge cleaning in large facilities, grout and porous floor scrubbing, main hallways plus entryways and lobbies, checkout aisles and spill clean up and water recovery.