Kärcher’s HDS middle class hot water pressure washers reach very high levels of performance, reliability and economy. With innovative features such as the eco!efficiency mode, offering fuel savings of up to 20% without compromising cleaning performance, 4-pole motors for high performance and long life, on-board diagnostics, and 3-year burner coil warranty, the HDS middle class range provides our customers with the toughness, cleaning power, and low running costs they demand. The HDS 7/9-4 M features a 4-pole, air-cooled 110V electric motor with long-life bearings and a 3-piston axial pump with ceramic pistons. With water flow of up to 700 litres per hour, and up to 90 bar pressure, the 7/9 is a great all-round machine with superb performance for daily and deep cleaning jobs where 110V power supply is required.