A Premium Mid–Upper Range Kärcher Pressure Washer with Home Kit and Water-Cooled Induction MotorThe Karcher K 5 Power Control Flex Home Pressure Washer — also referred to as the K 5 Power Control Flex Home, K5 Power Control Flex Home and K-5 Power Control Flex Home — is a high-performance model positioned in the upper tier of the Kärcher Home & Garden range. Offering more power than the K 2, K 3..