14" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Aluminum Bar + Product Details Size –

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

+ Product Description Upgrade your HVAC system with our heavy-duty

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

Think of the diameter as a straight line from one end to the other

14" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Aluminum Bar + Product Details Size –+ Product Details Size 14"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 875" width X 14" 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