12" BUTTERFLY DAMPER - For T-Bar, Drop Ceiling Grilles, (12" round duct opening) w32h32 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 34" or 34" x 8" duct opening (measured at the opening)

actual front end outer dimensions are approximately 22 5/8" width X 12 5/8" height -

Extra Strong: Padded molded handle assures that you have a good grip on your bag when dismounting off your back

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 12" OR 12" x 32" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 10" or 10" x 6" duct opening (measured at the opening)

12" BUTTERFLY DAMPER - For T-Bar, Drop Ceiling Grilles, (12" round duct opening) w32h32 + Product Details Perfect Fit+ Product Details Size 12" 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