10"W x 4"H Steel Air Supply Diffuser |11.75"W X 5.75"H for 10x4 Duct Opening

🧿Always measure the wall opening to determine which size you should order. Wall Opening Size = Listed Size. If the hole on the wall is 10"W x 4"please order the 10x4 size option. 🧿 Air Supply Grilles used for sidewall or ceiling openings. 🧿Using our Air Supply Grille within your ventilation system will improve your home circulation. The steel is stamped so there is no sharp edges. 🧿Durable white powder coated, made of high quality steel.