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"] 10" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 30 5/8" height

+ Product Details Size – 20"w X 8"h is the size for the duct opening measurement only

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Mounted with a frame and bayonet joint

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"] 10" Diameter actual front end outer dimensions+ 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