6" x 20" or 20" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 22.5"] Ceiling actual front end outer dimensions

actual front end outer dimensions are approximately 20 5/8" width X 12 5/8" height

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 6" duct openings

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 6" duct openings

75" Width X 23

providing a stylish and practical solution for ventilation

6" x 20" or 20" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 22.5"] Ceiling actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 20" or 20" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 75" x 19. 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