22"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 7.75"h] Color_R-8.0 Pink 16"w X 3"h Is The

16"w X 3"h Is The Size For The Duct Opening Measurement Only

+ Product Spec Sheet Return Air Grille Spec Sheet

+ Product Details Size – 16" x 18" or 18" x 16" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 13

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 20" OR 20" x 24" duct opening (measured at the opening)

22"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 7.75"h] Color_R-8.0 Pink 16"w X 3"h Is The+ Product Details Size 22"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 75" Width X 7. 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