With the Kärcher WD 4 S V-20/5/22 + Kärcher Vacuum Cleaner Bag for WD 4/5/6 (4x), you can vacuum wet and dry dirt without interruptions. The construction vacuum has a 20L capacity, which allows you to tackle medium-sized jobs. For example, you can keep your shed or house clean during DIY jobs like drilling and sanding. The vacuum also lasts longer thanks to the stainless steel reservoir. Because of the 5m cable, you can work further from the socket. That's useful, because you can work in every corner without problems. The 4 included fleece filter bags don't tear and catch fine dust. Is the bag full? Easily replace it with a new one.