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 with actual outer dimensions of

with actual outer dimensions of 8

Design – Rigid gauge ABS plastic

Easy Installation: Comes with mounting screws for a secure fit in minutes

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

+ Product Details Size – 18"w X 28"h is the size for the duct opening measurement only

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 with actual outer dimensions of+ 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