12"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 33.75"h] RV Mobile Home + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 6" or 6" x 8" duct opening (measured at the opening)

+ Product Details Size – 16"w X 18"h is the size for the duct opening measurement only

Crafted with top-notch quality aluminum

actual front end outer dimensions are approximately 28 5/8" width X 34 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 30" OR 30" x 36" duct opening (measured at the opening)

12"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 33.75"h] RV Mobile Home + Product Details Perfect Fit+ Product Details Size 12"w X 32"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 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