22" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel 75"H – fits a 10"

75"H – fits a 10" x 8" duct opening

actual front end outer dimensions are approximately 10 5/8" width X 18 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 24" OR 24" x 18" duct opening (measured at the opening)

The integral design allows you to easily adjust the curved blades

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22" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel 75"H – fits a 10"+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 6" OR 6" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 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