12"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 13.75"w x 13.75"h] Floor Grille Design – Removable face for

Design – Removable face for cleaning and access to damper - wooden damper for airflow shutoff control

making it a versatile choice for both residential and commercial settings

+ Product Details Size - 25"w X 30"h is the size for the duct opening measurement only

Every grille has a front end frame

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 18" OR 18" x 30" duct opening (measured at the opening)

12"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 13.75"w x 13.75"h] Floor Grille Design – Removable face for+ Product Details Size 12"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 13. 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