24" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14" Diameter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 10" or 10" x 8" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 36" or 36" x 8" duct opening (measured at the opening)

Simplified Installation: Our Radial Damper ensures easy setup

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24" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14" Diameter + Product Details Perfect Fit+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 6" OR 6" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 5. 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 Made