24" X 20" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 6" Diameter Actual Filter Size – 33

Actual Filter Size – 33 3/4"w x 19 3/4" x 1"

actual front end outer dimensions are approximately 24 5/8" width X 28 5/8" height

+ Product Details Size - 18"w X 10"h is the size for the duct opening measurement only

and slashes energy costs

For 8" duct opening

24" X 20" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 6" Diameter Actual Filter Size – 33+ Product Details Size 24"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 875" width X 22" 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