30"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 29.75"h] Floor Grille Actual Filter Size – 21

Actual Filter Size – 21 3/4"w x 17 3/4" x 1"

this grille boasts a sleek frame that ensures a refined and seamless look

+ Product Details Size – 16"w X 34"h is the size for the duct opening measurement only

The grille comes with all necessary screws for a secure fit

Our coils have a a very high PSI burst pressure

30"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 29.75"h] Floor Grille Actual Filter Size – 21+ Product Details Size 30"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 29. 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