Actual Filter Size – 23 3/4"w x 13 3/4" x 1"
+ Product Details Size - 14"w X 25"h is the size for the duct opening measurement only
actual front end outer dimensions are approximately 34 5/8" width X 27 5/8" height -
actual front end outer dimensions are approximately 30 5/8" width X 24 5/8" height
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14" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Aluminum Actual Filter Size – 23+ Product Details Size 14"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 875" width X 12" 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