16"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 35.75"h] Powder Coated During summer Product Details Perfect Fit SV2414 HP 12" Round Duct Pipe

During summer

+ Product Details Size - 36"w X 30"h is the size for the duct opening measurement only

+ Product Description Protect your thermostat with the durable and tamper-proof Beige Metal Thermostat Guard

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 10" OR 10" x 22" duct opening (measured at the opening)

actual front end outer dimensions are approximately 38 5/8" width X 36 5/8" height

16"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 17.75"w x 35.75"h] Powder Coated During summer Product Details Perfect Fit SV2414 HP 12" Round Duct Pipe During summer + Product Details Size 36"w X 30"h is the size for the duct opening measurement only