30"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 35.75"h] Round Damper Ring + Product Details Size -

+ Product Details Size - 8"w X 26"h X 2"d (for duct opening measurement only)

Actual Filter Size – 7 3/4"w x 13 3/4" x 1"

+ Product Details Size - 36"w X 28"h X 2"d (for duct opening measurement only)

Seamless Installation: Designed to fit seamlessly into a 24 by 24 inch opening

2" X 10" Brass Victorian Floor Register Grille - Modern Contempo Decorative Grate - HVAC Vent Duct Cover - Brass Plated

30"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 35.75"h] Round Damper Ring + Product Details Size -+ Product Details Size 30"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 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