The karcher k4 full control home pressure washer is an upright and mobile unit for low to medium usage it is ideal for cleaning patios and decking as well as garden furniture bicycles cars and motorbikes surface cluster technology for direct control via the trigger gun allows the user to select the ideal pressure depending on the surface being cleaned also makes it easy to switch to detergent mode the trigger gun is the pressure washers central element as it is permanently held by the customer