actual front end outer dimensions are approximately 10 5/8" width X 10 5/8" height
Actual Filter Size – 27 3/4"w x 21 3/4" x 1"
actual front end outer dimensions are approximately 24 5/8" width X 30 5/8" height
+ Product Details Size - 12"w X 24"h is the size for the duct opening measurement only
+ Product Details Size – 16"w X 10"h is the size for the duct opening measurement only
8" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling - Black Filter Grille actual front end outer dimensions+ Product Details Size 8"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 875" width X 8" 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