12"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 7.75"h] d The first number in a

The first number in a grille size represents the width

Its professional design and solid construction make it the perfect solution for safeguarding your thermostat against unwanted access

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 32" OR 32" X 14" duct opening (measured at the opening)

75"H – fits a 14" X 6" duct opening

+ Product Details Size – 36"w X 34"h is the size for the duct opening measurement only

12"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 7.75"h] d The first number in a+ Product Details Size 12"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 7. 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 wear