48" Inch Maxwell Comercial Air Curtain Sleek & Heavy Duty Design 115 Volt Maxwell boasts a streamlined modern appearance with no visible exterior screws. Features heavy duty door switch and stainless cover constructed of durable aluminum. Saves energy with powerful airflow that divides the inside and the outside environments into two independent temperature zones. Maxwell Air Curtains are designed to keep out the Summer heat, winter cold, dust, insects, smoke, unpleasant odors and exhaust fumes. Powerful low noise air flow maintains temperature separation up to 14 feet door height. UL listed and Certified for safety & 1 year limited manufacturer's parts warranty. Includes: 48" Air Curtain, Door Switch, Installation Hardware, 5 ft. power cord with grounded NEMA 5-15 Plug