22"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 35.75"h] w8h8 + Product Details Size – Ducting Components RG2016 FBA-HP Applications The C box

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 36" OR 36" x 30" duct opening (measured at the opening)

+ Product Details Size – 8" x 18" or 18" x 8" is the size for the duct opening measurement only

provides a modern look and quiet operation due to its half-inch by half-inch cube design

875" width X 13

22"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 23.75"w x 35.75"h] w8h8 + Product Details Size – Ducting Components RG2016 FBA HP Applications The C box + Product Details Size – 12"w X 14"h is the size for the duct opening measurement only + Product Details Perfect Fit & Easy Sizing Designed for a 30" x 36" OR 36" x 30" duct opening (measured at the opening)