20" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Powder Coated actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 24 5/8" height

These are airflow control components made to connect to supply grilles of the drop ceiling

+ Product Details Size - 10"w X 24"h is the size for the duct opening measurement only

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+ Product Details Size – 28"w X 24"h is the size for the duct opening measurement only

20" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Powder Coated actual front end outer dimensions+ Product Details Size 20"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 18" height. High Quality High quality steel construction, no scuff powder coat durable finish, smooth, shiny, scratch resistant, no sharp edges, 2 recessed screw holes on each side with screws included, screws same color as vent cover, easy installation. Adjustable airflow control Adjustable airflow