16"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 25.75"h] Insulated Line + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 24" or 24" x 8" duct opening (measured at the opening)

4" X 12" Brass Victorian Floor Register Grille - Modern Contempo Decorative Grate - HVAC Vent Duct Cover - Brass Plated

actual front end outer dimensions are approximately 14 5/8" width X 8 5/8" height

this filter grille never rusts and withstands long-term use in any environment

Filter Size - 33

16"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 25.75"h] Insulated Line + Product Details Perfect Fit+ Product Details Size 16"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 17. 75" Width X 25. 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