Heavy-duty 12 volt sealed motor * Comes complete with all mounting hardware for 1-1/4-inch and 2-inch receiver tubes * In-cab on/off control * Capacity: 4.4 cubic-feet/331-Pounds #1 rock salt or similar free-flowing dry material. * Item dimensions are 40.5-inch Height x 22.5-inch Width x 20.5-inch Depth