22"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 25.75"h] Curved Blade Steel + Product Details Size – LO246 Product Details Size 32 Compatible with Duct 4"

+ Product Details Size – 30"w X 32"h is the size for the duct opening measurement only

+ How To Measure A Grille

+ How To Measure A Grille Measure the size of the vent opening

+ Product Details Size – 10"w X 10"h is the size for the duct opening measurement only

22"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 23.75"w x 25.75"h] Curved Blade Steel + Product Details Size – LO246 Product Details Size 32 Compatible with Duct 4" + Product Details Size – 30"w X 32"h is the size for the duct opening measurement only + How To Measure A Grille