24" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w18h18 Actual Filter Size – 7

Actual Filter Size – 7 3/4"w x 7 3/4" x 1"

+ Product Details Size - 36"w X 12"h is the size for the duct opening measurement only

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

75" Width X 25

Actual Filter Size – 31 3/4"w x 5 3/4" x 1"

24" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w18h18 Actual Filter Size – 7+ Product Details Size 24"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 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