8" BUTTERFLY DAMPER - Control Your Airflow on drop ceiling grilles of 24x24 (8" round duct opening) 8" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 8 5/8" height

Compatible with 24x24 openings and built from durable

+ Product Details Size – 22"w X 25"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 34 5/8" height -

How to Measure Your Vent Hole Before Ordering a Grille

8" BUTTERFLY DAMPER - Control Your Airflow on drop ceiling grilles of 24x24 (8" round duct opening) 8" Diameter actual front end outer dimensionsControl Your Airflow on drop ceiling grilles See our separate listing for T Bar supply grille Check Out This Asin For Matching T Bar Drop Ceiling Grille: B007CNEJZK These are airflow control components made to connect to supply grilles of the drop ceiling, the T Bar vent covers. See our separate listing of T Bar Supply Grilles. Metal Fab A brand you can trust. Some of our best features aren't readily apparent, but youll appreciate the benefits over a