The 12"W X 12"H Adjustable AIR Supply Diffuser is a square-shaped HVAC vent cover designed for use as a sidewall or ceiling mount. Made of metal with a white finish, this surface-mounted vent cover includes dampers and is designed for easy installation on walls or ceilings. With a size of 12 X 12 inches, this vent cover is lightweight at 1.2 pounds and does not require any batteries for operation. It is a reliable and efficient solution for controlling air flow in heating, cooling, and ventilation systems.