16"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 9.75"h] Powder-Coated actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in

actual front end outer dimensions are approximately 31 5/8" width X 24 5/8" height -

Refrigerant - 1/2" White Insulation - 50' Long

+ Product Details Size - 32"w X 20"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 28"h X 2"d (for duct opening measurement only)

+ Product Details Size – 10"w X 6"h is the size for the duct opening measurement only

16"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 17.75"w x 9.75"h] Powder Coated actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 31 5 8" width X 24 5 8" height Refrigerant 1 2" White Insulation 50' Long