6" BUTTERFLY DAMPER - For T-Bar, Drop Ceiling Grilles, Lay in Diffusers (6" round duct opening) Adjustable Return with actual outer dimensions of

with actual outer dimensions of 20

The vent also has a bug screen to eliminate pest intrusion

actual front end outer dimensions are approximately 31

actual front end outer dimensions are approximately 30 5/8" width X 20 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 24" OR 24" X 14" duct opening (measured at the opening)

6" BUTTERFLY DAMPER - For T-Bar, Drop Ceiling Grilles, Lay in Diffusers (6" round duct opening) Adjustable Return with actual outer dimensions of+ Product Details Size 6" round duct opening Heavy Gauge Steel Heavier gauge than needed, built for durability and long life in mind, but still very thin. Installation Location Ceiling. Design This airflow control component are made to connect to a drop ceiling lay in diffuser grille. Powder Coat Finish smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed. + Product Description Introducing the 6" Butterfly Damper Your Solution for