22"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 17.75"h] ceiling Filter Size - 27

Filter Size - 27

Lock and Key included

+ Product Details Size – 16" x 32" or 32" x 16" is the size for the duct opening measurement only

it seamlessly blends with any decor while performing its vital role in your HVAC system

Actual Filter Size – 29 3/4"w x 5 3/4" x 1"

22"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 17.75"h] ceiling Filter Size - 27+ Product Details Size 22"w X 16"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 75" Width X 17. 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