22"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 37.75"h] steel Noise free components - no

Noise free components - no vibrating louvers etc

+ Product Details Size - 18"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 24"w X 26"h is the size for the duct opening measurement only

+ Product Details Size – 8" x 22" or 22" x 8" is the size for the duct opening measurement only

+ Product Description Protect your thermostat with the durable and tamper-proof Beige Metal Thermostat Guard

22"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 37.75"h] steel Noise free components - no+ Product Details Size 22"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 75" Width X 37. 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