22"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 33.75"h] 12" Round Duct Pipe margin-right: 8px

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Filter Size - 15

actual front end outer dimensions are approximately 22 5/8" width X 52 5/8" height

+ Product Details Size – 12" X 4" is the size for the duct opening (floor/vent hole) measurement only

with actual outer dimensions of 8

22"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 33.75"h] 12" Round Duct Pipe margin-right: 8px+ Product Details Size 22"w X 32"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 75" Width X 33. 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