Description
8" x 8" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3 Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 11" x 11"] Insulated Line + Product Details Size MFRG2420W HP + Product Details Size 26"w X 6"h is the size for the duct opening measurement only all the way around the square portion which can be used for attachment or folded over Always measure the actual opening in your ceiling or wall accordion title { font size: 18px