Replacement filter bag on board. Integrated dry cleaning system. Interchangeable roller covers for carpets and floors. Telescopic handle for maximum comfort. No tools are required to replace the brush roller or to clean the base housing. DCS is the patented integrated Lindhaus dry-cleaning system. The mechanical action of the 5000 rpm brush in conjunction with the Lindhaus dry compound provide thorough cleaning which results in soft, fresh, clean carpet. Dynamic has a patented weight distribution system that allows the handle weight to be only 860g (1.9 lbs.)