30"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 9.75"h] flat stamped steel look no further than HVAC 4 X 12 Is CRFG2028 Width_14in

look no further than HVAC Premium

+ Product Details Size - 25"w X 22"h is the size for the duct opening measurement only

Design – Removable door/face for easy filter change & cleaning - uses a 1" thick filter

+ Product Details Size – 24"w X 8"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 12" OR 12" x 32" duct opening (measured at the opening)

30"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 31.75"w x 9.75"h] flat stamped steel look no further than HVAC 4 X 12 Is CRFG2028 Width_14in look no further than HVAC Premium + Product Details Size 25"w X 22"h is the size for the duct opening measurement only