36"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 23.75"h] Color_R-8.0 Pink + Product Details Size – MFFG810-1 Product Details Size 20 Compatible with Duct 3"

+ Product Details Size – 14"w X 30"h is the size for the duct opening measurement only

represents the width

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 34" or 34" x 6" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 16" OR 16" X 18" duct opening (measured at the opening)

actual front end outer dimensions are approximately 10 5/8" width X 32 5/8" height

36"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 37.75"w x 23.75"h] Color_R 8.0 Pink + Product Details Size – MFFG810 1 Product Details Size 20 Compatible with Duct 3" + Product Details Size – 14"w X 30"h is the size for the duct opening measurement only represents the width