10" BUTTERFLY DAMPER - For T-Bar, Drop Ceiling Grilles, (10" round duct opening) w8h8 actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 42 5/8" height

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

+ Product Details Size - 6"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 28"w X 34"h is the size for the duct opening measurement only

Actual Filter Size – 15 3/4"w x 27 3/4" x 1"

10" BUTTERFLY DAMPER - For T-Bar, Drop Ceiling Grilles, (10" round duct opening) w8h8 actual front end outer dimensions+ Product Details Size 10" 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