14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_White Filter Size - 33

Filter Size - 33

+ Product Details Size – 24"w X 24"h is the drop ceiling HVAC supply grille size - for T-Bar lay-in

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Filter Size - 25

14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_White Filter Size - 33+ 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