The Kärcher WD 6 P S V-30/6/22/T *EU III is the most comprehensive Kärcher construction vacuum in our assortment and suitable for extended regular jobs. For example, this model is the only one with adjustable suction power. That's useful, because it allows you to determine the right power for each job. Thanks to the automatic filter cleaning system, the suction power remains constant, even for intensive tasks. You vacuum up both wet and dry dirt in the extra large 30L reservoir. This means you'll have to empty it much less frequently. The power cord has a length of 6m. This allows you to work in larger spaces or corners without having to change the socket.