Viper Auto Scrubber WalkBehind Battery PoweredFANG20-105 20 Inch 13 GallonWith Pad Holder 105 AH WetBatteries, FANG20-105. ThisVIPER FANG20-105 BatteryPowered Automatic Scrubberlays down cleaning solution,scrubs, then vacuums awaydirty solution, leavingfloors clean and dry in onepass