24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 37.75"h] Black The integrated eight-tumbler lock system

The integrated eight-tumbler lock system

actual front end outer dimensions are approximately 24 5/8" width X 18 5/8" height

Design – Circular return valves - designed to be used in low and medium pressure ventilation air conditioning systems

Actual Filter Size – 15 3/4"w x 21 3/4" x 1"

actual front end outer dimensions are approximately 36 5/8" width X 36 5/8" height

24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 37.75"h] Black The integrated eight-tumbler lock system+ Product Details Size 24"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 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