32"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 35.75"h] 6" Round Duct Pipe + Product Details Size -

+ Product Details Size - 12"w X 20"h X 2"d (for duct opening measurement only)

[Outer Dimensions: 38

and its seamless drop-in installation process ensures effortless setup

actual front end outer dimensions are approximately 20 5/8" width X 27 5/8" height -

+ Product Details Size – 24" x 24" with 14" collar T-Bar drop ceiling perforated return grill - metal back casing

32"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 35.75"h] 6" Round Duct Pipe + Product Details Size -+ Product Details Size 32"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 35. 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