... 3,Low noise level 4,Suction motor from Ametek, USA squeegee Floor Scrubber Machine FS 20W1, Battery power 24V2,Huge ... tanks3,Low noise level4,Suction motor from Ametek, USA squeegee ... the recovery tank, protects the suction motor betterLow noise level suction motor device, lows the machine operation noiseWith clean water filter system ...