22" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Outdoor Vent Covers Actual Filter Size – 47

Actual Filter Size – 47 3/4"w x 23 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 20" OR 20" X 16" duct opening (measured at the opening)

Weather and Pest Proof – These louvers are especially designed to prevent water from entering your home

+ Product Details Size - 26"w X 4"h is the size for the duct opening measurement only

22" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Outdoor Vent Covers Actual Filter Size – 47+ Product Details Size 22"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 875" width X 14" 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