Clarke 56114022 FOCUS® II 28 BOOST® Automatic Floor Scrubber 310 Ah wet batteries, onboard charger, pad holder and chemical mixing system 4 cubic foot 2 Year Factory Warranty Restock your HazMat Quick 2 Year Factory Warranty 200 Maximum Depth of Cut 3 16" Feed Rate (FPM) 16 and 20 Motor Power (HP) 3 Dust Collection Minimum CFM Required 600 CFM Number of Speeds 2 Number of Knives 3 Maximum Planing Thickness 6" Cutterhead Diameter 2 5 8" Motor Amps 15 Dust Port Outside Diameter 4" Motor Phase (PH) 1 Table Size with Extensions (L x W) 15 x 21 6 decibels providing a much more comfortable user experience than a walk behind scrubber