36"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 35.75"h] Color_Black provides a modern look and

provides a modern look and quiet operation due to its half-inch by half-inch cube design

Actual Filter Size – 27 3/4"w x 29 3/4" x 1"

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+ Product Details Size - 20"w X 36"h is the size for the duct opening measurement only

Actual Filter Size – 7 3/4"w x 33 3/4" x 1"

36"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 35.75"h] Color_Black provides a modern look and+ Product Details Size 36"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 35. 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