14" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter Easy Installation – Complete set

Easy Installation – Complete set of sponge gasket and mounting frame included

+ Product Details Size - 8"w X 10"h is the size for the duct opening measurement only

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Crafted from high-quality red oak wood

14" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter Easy Installation – Complete set+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 24" OR 24" X 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 23. 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