Features a 9 liter (2.3 gallons) capacity tub that is long enough to accommodate and clean a 16 inch AR-15 upper in addition to all your brass and metal parts. Four transducers and a heating element enhances cleaning action. Removes carbon residue and other debris from cartridges cases, gun parts and other metal equipment. Includes a 1.7 quart inner tank that can be used in the main tank for cleaning multiple smaller batches. Other features include integrated drain pans in the lids, a small parts basket, a degas function and five temperature settings from 100-140 degrees Fahrenheit.