16" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way Deflection actual front end outer dimensions

actual front end outer dimensions are approximately 20 5/8" width X 18 5/8" height

and durable finish that resists scratches and maintains a clean

Tailored for Your Needs: Specifically suited for 24x24 lay-in diffusers

actual front end outer dimensions are approximately 24 5/8" width X 32 5/8" height

16" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way Deflection actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 8" OR 8" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 7. 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