... 2,suction motor from Ametek 3,with forward speed adjustment Automatic Floor Scrubber Dryer1,with CPU control2,suction motor from Ametek3 ... operationAdjustable brush pad assisted system, easy and convenientBig mouth for solution tank, you can add the water and detergent easilyTransparent hose ... check the water lever in the solution tankThere is a special opening in back of solution tank, you can add the ...