34"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 31.75"h] 12in diameter + Product Details Size –

+ Product Details Size – 14" x 22" or 22" x 14" is the size for the duct opening measurement only

12"w X 4"h Is The Size For The Duct Opening Measurement Only

+ Product Description The Clear Plastic Thermostat Guard provides reliable protection and security for your thermostat while ensuring optimal functionality

actual front end outer dimensions are approximately 18 5/8" width X 34 5/8" height

34"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 31.75"h] 12in diameter + Product Details Size –+ Product Details Size 34"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 31. 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