Metabo ASR 2050 heavy-duty vacuum has automatic electromagnetic vibration filter cleaning that keeps it at near peak performance without having to open the unit to clean the filters. Used to vacuum dust and solid particles as well as nonflammable fluids, vacuum features a suction power regulator that protects the electrical circuit from overloading and tripping circuit breakers or blowing fuses when used with an attached power tool. Unit can be used in conjunction with standard dustless concrete grinding systemsThe vacuum’s stable design includes extra large rear wheels and industrial front swivel canisters. The ASR 2050 comes with a 1-1/2-inch by 14-foot suction hose, an adaptor that fits Metabo’s dustless accessories, a transport handle, a vacuum wand, and crevice and floor tools as well as a polyethylene collection bag and two easy-change pleated polyester filters. Airflow rate is 130 cubic feet per minute, total filter surface is 1,333 square inches, and capacity is 13 gallons.