8" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Powder-Coated + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 14 5/8" height

actual front end outer dimensions are approximately 26 5/8" width X 10 5/8" height -

Actual Filter Size – 29 3/4"w x 5 3/4" x 1"

High Quality – High-quality

8" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling Powder Coated + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 12"w X 14"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 20 5 8" width X 14 5 8" height