36"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 29.75"h] white 75"H – fits a 14" SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe

75"H – fits a 14" X 12" duct opening

4" X 12" Brass Victorian Floor Register Grille - Modern Contempo Decorative Grate - HVAC Vent Duct Cover - Brass Plated

actual front end outer dimensions are approximately 34 5/8" width X 28 5/8" height

Easy clean Healthy air flow for your HVAC system - noise free components - no vibrating louvers etc

+ Product Details Size – 14"w X 8"h is the size for the duct opening measurement only

36"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 37.75"w x 29.75"h] white 75"H – fits a 14" SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe 75"H – fits a 14" X 12" duct opening 4" X 12" Brass Victorian Floor Register Grille Modern Contempo Decorative Grate HVAC Vent Duct Cover Brass Plated