8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 34.5"] Width_20in + Product Details Size –

+ Product Details Size – 10" x 32" or 32" x 10" is the size for the duct opening measurement only

Actual Filter Size – 7 3/4"w x 29 3/4" x 1"

+ Product Details Size - 32"w X 26"h is the size for the duct opening measurement only

equipped with a lever for airflow dampening

+ Product Details Size – 6" round duct opening-

8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 34.5"] Width_20in + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 8" x 32" or 32" x 8" duct opening (measured at the opening), with actual outer dimensions of 10. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 7. 75" x 31. 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