8"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 27.75"h] w18h18 rotate it to align with

rotate it to align with the square frame

Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

actual front end outer dimensions are approximately 10 5/8" width X 34 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 16" duct opening (measured at the opening)

+ Product Details Size - 28"w X 4"h is the size for the duct opening measurement only

8"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 27.75"h] w18h18 rotate it to align with+ Product Details Size 8"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 27. 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 wear