10" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 12" Diameter + Product Details Size –

+ Product Details Size – 20"w X 12"h is the size for the duct opening measurement only

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Easy Installation – Includes all necessary screws for quick and hassle-free setup

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height -

+ Product Details Size – 12" X 2" is the size for the duct opening (floor/vent hole) measurement only

10" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 12" Diameter + Product Details Size –+ Product Details Size 10"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 875" width X 10" 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