6"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 11.75"h] 18in diameter Actual Filter Size – 19

Actual Filter Size – 19 3/4"w x 25 3/4" x 1"

This aluminum adjustable louvered garage vent allows air ventilation and circulation in your garage 24 hours a day

14" x 4" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

+ Product Details Size – 26"w X 34"h is the size for the duct opening measurement only

6"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 11.75"h] 18in diameter Actual Filter Size – 19+ Product Details Size 6"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 7. 75" Width X 11. 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 wear