6"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 35.75"h] Aluminum - Cube Core this air supply register is Height_14in WD G128 hp jblade overlay

this air supply register is ideal for sidewall and ceiling applications

+ Product Details Size - 12"w X 30"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 28 5/8" width X 20 5/8" height

and with a built-in back 1/2" mesh they also protect you from annoying rodents like mice

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 24" OR 24" x 32" duct opening (measured at the opening)

6"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 7.75"w x 35.75"h] Aluminum Cube Core this air supply register is Height_14in WD G128 hp jblade overlay this air supply register is ideal for sidewall and ceiling applications + Product Details Size 12"w X 30"h is the size for the duct opening measurement only