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 875" width X 15

875" width X 15

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

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

+ Product Details Size - 10"w X 30"h is the size for the duct opening measurement only

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 875" width X 15+ 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