Karcher Pressure Washer K 2.120Overview Compact, lightweight, practical, robust the K 2. 120 car washer is ideal for occasional use around the house. This portable high pressure car washer is suitable for cleaning cars, garden furniture or patios. An impact resistant, recyclable plastic casing effectively prevents dirt particles from damaging the motor and pump. A safety valve prevents pressure overload. A pressure switch control switches the motor on and off when the trigger gun