8"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 9.75"w x 17.75"h] white + Product Details Perfect Fit SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 36" OR 36" X 14" duct opening (measured at the opening)

Made of High Quality Aluminum That Will Never Rust

+ Product Description Protect and secure your thermostat with this high-quality Clear Plastic Thermostat Guard

875" width X 7

actual front end outer dimensions are approximately 26 5/8" width X 22 5/8" height

8"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh Black [Outer Dimensions 9.75"w x 17.75"h] white + Product Details Perfect Fit SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe + Product Details Perfect Fit & Easy Sizing Designed for a 14" x 36" OR 36" X 14" duct opening (measured at the opening) Made of High Quality Aluminum That Will Never Rust