30"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 35.75"h] 6in diameter + Product Details Size – RGADJ-3012 7" Round Duct Pipe Quality Packaging carefully packaged

+ Product Details Size – 10" x 28" or 28" x 10" 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

with actual outer dimensions of 18

Designed to seamlessly integrate with T-Bar vent covers in drop ceiling setups

30"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 31.75"w x 35.75"h] 6in diameter + Product Details Size – RGADJ 3012 7" Round Duct Pipe Quality Packaging carefully packaged + Product Details Size – 10" x 28" or 28" x 10" 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