16" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling with filter Actual Filter Size – 23

Actual Filter Size – 23 3/4"w x 29 3/4" x 1"

Actual Filter Size – 21 3/4"w x 27 3/4" x 1"

Actual Filter Size – 31 3/4"w x 27 3/4" x 1"

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

+ Product Details Size - 14"w X 30"h is the size for the duct opening measurement only

16" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling with filter Actual Filter Size – 23+ Product Details Size 16"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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