22" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel + Product Details Size –

+ Product Details Size – 8" x 10" or 10" x 8" is the size for the duct opening measurement only

+ Product Details Size – 32" x 34" or 34" x 32" is the size for the duct opening measurement only

+ Product Details Size - 10"w X 12"h is the size for the duct opening measurement only

The integral design allows you to easily adjust the curved blades

Actual Front End Outer Dimensions Are 8" Diameter

22" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel + Product Details Size –+ 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