18"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 19.75"w x 25.75"h] Aluminum this guard ensures long-lasting protection

this guard ensures long-lasting protection and security

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

+ Product Details Size – 10" x 32" or 32" x 10" is the size for the duct opening measurement only

High Quality – High quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

only measure the "hole" in the wall/duct

18"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 19.75"w x 25.75"h] Aluminum this guard ensures long-lasting protection+ Product Details Size 18"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 19. 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