Thorne Electrics powerful Koblenz 1,650-PSI motor powered pressure washer uses up to 80 % less water than a regular garden hose, saving you water and money. This electric pressure washer is ideal for washing most surfaces. Use the Koblenz 1,650-PSI Electric-powered pressure washer to clean your car, boat, patio and more. This pressure washer features a 16.4 ft. high pressure hose and a 1.18 GPM water flow. 10 ft. power cord.