KARCHER HDS 7/9 -4 M (110v)KARCHER HDS 7 9 4 M 4 Pole Motor 110v Hot Water And Steam High Pressure Cleaner order no. 1. 077 902. 0 Krchers HDS middle class hot water high pressure cleaners 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