Limitless suction: Powered by two 18-volt batteries and a powerful 36-volt motor. The WD 4-18 Dual Battery Set wet/dry vacuum cleaner is part of the 18 V Kärcher Battery Power platform and impresses with its powerful suction performance and great mobility. The device, the 2.2-meter suction hose, and the clip-on floor nozzle are perfectly coordinated to quickly eliminate wet, fine, or coarse dirt. The vacuum features a durable 20-liter plastic container, fleece filter bag, and a flat pleated filter suitable for nonstop wet and dry vacuuming without needing to change filters. Thanks to the patented filter removal technology, the filter can be removed and cleaned in seconds – without any contact with dirt. Where vacuuming is not possible, the blow function comes in handy. The suction hose storage is space-saving and secure by hanging it on the device head. The pipes and floor nozzle can also be quickly and conveniently parked on the bumper. Additional features include an ergonomic carrying handle and the "Pull & Push" closure system for easy opening and closing of the container. The package includes two 18 V Kärcher Battery Power batteries and a charger. 18 V + 18 V = 36 V power: Powerful 36 V motor powered by two 18 V lithium-ion batteries. Real Time Technology with an LCD battery display: remaining runtime, remaining charging time, and battery capacity. The wet/dry vacuum cleaner with the highest suction power in the Kärcher Home & Garden range. Patented filter removal technology: seconds-fast and easiest filter removal by folding out the filter cassette – completely without dirt contact. For wet and dry vacuuming without additional filter changes. Practical blow function: Wherever vacuuming is not possible, the practical blow function helps. Effortless dirt removal, for example, from a gravel bed.