30"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 13.75"h] Adjustable Return but still very thin Height_16in RG1612AL Product Details Size 14

but still very thin

+ Product Details Size - 10"w X 4"h is the size for the duct opening measurement only

screws same color as vent cover

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height -

Aluminum Garage Door Air Vent Grille Register - With Damper Control Lever For Winter & Summer Settings - With Insect Net Prevent Guard [17

30"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 31.75"w x 13.75"h] Adjustable Return but still very thin Height_16in RG1612AL Product Details Size 14 but still very thin + Product Details Size 10"w X 4"h is the size for the duct opening measurement only