20"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Brown [Outer Dimensions 21.75"w x 21.75"h] w34h34 Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 5 3/4" x 1"

Sleek Design – The clear and unobtrusive design ensures it blends seamlessly with any home

Constructed from durable

+ Product Details Size – 20"w X 34"h is the size for the duct opening measurement only

this grille offers a seamless blend of functionality and aesthetics

20"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Brown [Outer Dimensions 21.75"w x 21.75"h] w34h34 Actual Filter Size – 29+ Product Details Size 20"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 21. 75" Width X 21. 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