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 + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 34"w X 20"h is the size for the duct opening measurement only

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

Actual Filter Size – 13 3/4"w x 7 3/4" x 1"

This Will Create A Cycle Of In And Out Air FLow

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

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 + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 34"w X 20"h is the size for the duct opening measurement only + Product Details Size – 10"w X 6"h is the size for the duct opening measurement only