20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w32h32 + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 30"w X 22"h is the size for the duct opening measurement only

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+ Product Details Size - 24"w X 32"h is the size for the duct opening measurement only

Actual Filter Size – 24 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height

20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling w32h32 + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 30"w X 22"h is the size for the duct opening measurement only } * LIST SPACING * #hvac product accordion li { margin bottom: 16px