14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum - Cube Core + Product Details Size -

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

+ Product Details Size - 36"w X 32"h is the size for the duct opening measurement only

With plain ends

providing a stylish and practical solution for ventilation

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14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum - Cube Core + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 10" or 10" x 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 9. 75" x 1" Premium Airflow Efficiency High performance cube core eggcrate design allows 95% airflow efficiency, reducing energy costs and maximizing HVAC system lifespan. Durable, Rust Free Aluminum