Single-length 7-, 8-, 9-, and 10-foot-long models have been added to the ANSI/NSF 37-certified E-Zone and K-Zone (EZN and KZN Series) air curtains. The EZN and KZN Series are now available in nine widths ranging from 3-10 feet in length. Each new length model uses the same E-Zone/K-Zone 8-½-by-8-inch cabinet design. The air curtains are suitable for walk-in coolers, pass-thru windows, concession windows, patio openings, service/customer entry doors, and other doorways that need environmental control in the food service, dock-and-door, and HVACR markets. Available in custom colors and durable power-coat finishes. Multiple air directional vanes constructed of strong heavy-gauge aluminum assure proper deflection and airflow to the outdoor threshold, said the company. Universal mounting system offers flexible horizontal or vertical mounting options.