12"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 23.75"h] 10" Round Duct Pipe actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 16 5/8" height -

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Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

Say goodbye to vibrating louvers - this grille ensures a quiet

1/2" - 3119 PSI

12"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 23.75"h] 10" Round Duct Pipe actual front end outer dimensions+ Product Details Size 12"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 23. 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