30"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 33.75"h] 10" Diameter this diffuser is the perfect

this diffuser is the perfect blend of function and style for your home

40"w X 16"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size – 28" x 30 or 30" x 28" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 36 5/8" width X 18 5/8" height

+ Product Details Size – 24"w X 34"h is the size for the duct opening measurement only

30"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 33.75"h] 10" Diameter this diffuser is the perfect+ Product Details Size 30"w X 32"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 33. 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