32"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 31.75"h] Insulated Line + Product Details Size –

+ Product Details Size – 22" x 36" or 36" x 22" is the size for the duct opening measurement only

the gap will expand and retract to meet perfect air supply needed

+ Product Details Size - 20"w X 6"h X 2"d (for duct opening measurement only)

+ Product Details Size - 24"w X 22"h X 2"d (for duct opening measurement only)

Actual Filter Size – 35 3/4"w x 5 3/4" x 1"

32"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 31.75"h] Insulated Line + Product Details Size –+ Product Details Size 32"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 31. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never