The Karcher K4 pressure washer is a high-performance, electric power washer designed for both residential and light-duty commercial use. It features a powerful 1800-watt motor, a water flow rate of up to 420 liters per hour, and a maximum pressure of 130 bar. It also comes with a variety of attachments, including a dirt blaster nozzle, a high-pressure detergent nozzle, and a patio cleaner, making it versatile and easy to use. The k4 can be used to clean a variety of surfaces, including decks, patios, cars, and outdoor furniture.