16"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 29.75"h] Powder-Coat + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 16" OR 16" x 20" duct opening (measured at the opening)

Crafted from robust 20-gauge steel

+ Product Details Size – 18" x 24" or 24" x 18" is the size for the duct opening measurement only

100% Satisfaction Guaranteed

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 34" OR 34" x 26" duct opening (measured at the opening)

16"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 29.75"h] Powder-Coat + Product Details Perfect Fit+ Product Details Size 16"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 17. 75" Width X 29. 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