Fasten to the wall or ceiling, and finish with paint or wallpaper to match any environment. Easy retrofit – mount at any time! Lite Collection - made in durable ABS plastic. Solid steel models also available. Vent remains open at all times. Dampers to regulate airflow sold separately. Airflow performance may vary based on the set-up and configuration of your HVAC system Patented design. Proudly made in North America, Manufacturer: Fittes