24" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder Coated accordion-header h2

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actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height

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actual front end outer dimensions are approximately 16 5/8" width X 26 5/8" height -

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 25" OR 25" x 20" duct opening (measured at the opening)

24" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder Coated accordion-header h2+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 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 Made from