14"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 11.75"h] Copper Coil-Insulated Line Set + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 18" x 36" or 36" x 18" is the size for the duct opening measurement only

+ Product Details Size - 30"w X 8"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 12" OR 12" x 22" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 18" Or 18" x 34" duct opening (measured at the opening)

+ Product Details Size - 16"w X 18"h is the size for the duct opening measurement only

14"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 15.75"w x 11.75"h] Copper Coil Insulated Line Set + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 18" x 36" or 36" x 18" is the size for the duct opening measurement only + Product Details Size 30"w X 8"h X 2"d (for duct opening measurement only)