16" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling d + Product Details Size –

+ Product Details Size – 12" x 12" is the size for the duct opening measurement only

+ Product Details Size - 32"w X 4"h is the size for the duct opening measurement only

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875" width X 7

+ Product Details Size - 8"w X 4"h is the size for the duct opening measurement only

16" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling d + Product Details Size –+ Product Details Size 16"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 875" width X 6" 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