The Everbilt 12 in. x 6 in. 1-Way Steel Adjustable Wall/Ceiling Register in White is a durable and versatile vent designed for use in both walls and ceilings. Made of steel with a powder coat white finish, this rectangular-shaped register features a 1-way air deflection to help control the airflow in your home. With an outside length of 7.75 inches and a maximum duct opening length of 6 inches, this vent from Everbilt is a reliable addition to your heating, cooling, and air system.