Stealth™ ASD20B 20" Automatic Scrubber with Brush Assist features the new innovative design with the Stealth™ Noise Reduction Technology, it's 4 times quieter than other standard automatic scrubbers. This automatic scrubber features an 11 gallon solution and 13 gallon recovery tanks with 20" single disk scrub . Other standard features include rugged weighted squeegee assembly which removes water and helps reduce slip and fall injuries, easy tanks to drain and clean with user friendly controls and gauges. A pad driver, battery pack and charger are standard.