32"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 19.75"h] Curved Blade Steel rust-free aluminum construction with smooth SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe

rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)

+ Product Details Size – 28"w X 26"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 18" OR 18" x 32" duct opening (measured at the opening)

actual front end outer dimensions are approximately 41

providing a stylish and practical solution for ventilation

32"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 33.75"w x 19.75"h] Curved Blade Steel rust free aluminum construction with smooth SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included) + Product Details Size – 28"w X 26"h is the size for the duct opening measurement only