The K1122TST cold water electric pressure washers, producing 1,400 PSI at 2.1 gallons per minute, are for industrial and commercial use; perfect for the professional who cleans hotels and buildings, does auto detailing, HVAC maintenance, screen printing, or washes boats or vehicles. What distinguishes this Kranzle unit from the competition are the unique capabilities of the Kranzle pump and the uncompromising German quality. The Kranzle pump can run dry and on bypass longer than its rivals -- as proven in independent laboratory tests -- making it more durable and reliable than the competition.