When the job involves large amounts of carpeted surfaces this 18" self-propelled extractor can easily clean up to 8,000 square feet of surface per hour. Large 20 gallon tanks extend fill and empty times, the highly maneuverable design means cleaning in surprisingly tight areas, around obstacles and furniture. Excellent control systems include adjustable brush and vacuum shoe pressures, choice of forward speeds, intermittent or continuous solution flow, even a clean solution tank filter element for protection of the high pressure pump.