20" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w20h20 actual front end outer dimensions

actual front end outer dimensions are approximately 16 5/8" width X 27 5/8" height

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5" width x 13

+ Product Details Size – 25"w X 6"h is the size for the duct opening measurement only

+ Product Details Size – 36"w X 32"h is the size for the duct opening measurement only

20" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w20h20 actual front end outer dimensions+ Product Details Size 20"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" width X 13. 75" 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