28"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 25.75"h] Width_20in Tamper-Proof Security – Features a 4 X 12 Is CRFG2028 Width_14in

Tamper-Proof Security – Features a robust design to prevent unauthorized access and protect your thermostat settings

+ Product Details Size - 32"w X 34"h is the size for the duct opening measurement only

easy unrestricted airflow

+ Product Details Durable Construction - Made with clear

this grille enhances air circulation

28"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 29.75"w x 25.75"h] Width_20in Tamper Proof Security – Features a 4 X 12 Is CRFG2028 Width_14in Tamper Proof Security – Features a robust design to prevent unauthorized access and protect your thermostat settings + Product Details Size 32"w X 34"h is the size for the duct opening measurement only