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This unit can be attached to any Karcher Pressure Washer and is predominantly a patio cleaning device that can be used on fencing, garage doors and a number of different surfaces. It has two dirtblasting nozzles on opposite ends of a propeller attached inside the outer casing. When the high-pressure water is blasted through the lance and propeller a hovercraft effect is created that cleans the whole patio in a tornado effect, reducing the cleaning task by five times.The cleaning nozzles are height adjustable to cater for differing floor or wall surfaces and the outer casing protects from splash back, which stops irritating dirt being spread around your home.Patio Cleaning Accessory Features:Two dirtblasting nozzlesHovercraft effectCleaning splash back protectionFor wooden decking, patio flooring, tiles and concreteFive times faster than regular spray lances.