Available with and without FaST™. Available in disk or cylindrical. Foam-based FaST™ is the key to peak productivity and safety. Using an innovative foam-based detergent delivery system, scrubbers with FaST™ increase productivity, eliminate the need for operator to handle chemicals, and leave just-cleaned floors virtually dry and safe for traffic. Also available with echo™ which is a cleaning technology that electrically-activates tap water to behave like a powerful detergent. Cleaning effectiveness is the same or better than general purpose cleaners, without the environmental or health impacts of producing, packaging, transporting, using, and disposing of traditional chemicals. You start with water and end with just water. ec-H20™ Eliminate general purpose cleaners with the chemical-free technology that cleans without the environmental and human health issues associated with producing, transporting, packaging, using and disposing of harsh cleaning chemcials. Hygenic® tanks reduce on-board mold, bacteria, and other contaminants. Batter power provides OSHA-recognized, whisper-quiet operation. 22.5 gallon solution tank capacity, 27 gallon recovery tank. (4) 6V, 235 AH batteries, charger included.