34"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 25.75"h] Grille + How To Measure A

+ How To Measure A Grille

Design – Fixed Hinged for easy filter change & cleaning - uses a 1" thick filter

+ Product Details Size - 26"w X 32"h X 2"d (for duct opening measurement only)

+ Product Details Size - 8"w X 32"h is the size for the duct opening measurement only

+ Product Description Introducing the 6" Butterfly Damper – Your Solution for Controlled Airflow

34"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 25.75"h] Grille + How To Measure A+ Product Details Size 34"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 25. 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