This 12 inch metal, top fill commercial upright single motor vacuum cleaner is built for heavy duty commercial use. Great for use in manufacturing plants and industrial warehouses due to its heavy duty metal construction. With a powerful 8 amp motor, and a 50 foot power cord, this unit can go anywhere, and vacuum just about anything up. With the easily removable plastic cover, the U-310 model is the most easily maintained industrial vacuum on the market. Comes with a 5 year warranty on the chassis, 2 years on fan, on/off switch, and metal yoke. And finally, 1 year on all other components.