8" x 22" or 22" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 24.5"] Adjustable Return Actual Filter Size – 24

Actual Filter Size – 24 3/4"w x 5 3/4" x 1"

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+ Product Details Size - 32"w X 12"h is the size for the duct opening measurement only

Actual Filter Size – 23 3/4"w x 23 3/4" x 1"

+ Product Details Size - 30"w X 30"h is the size for the duct opening measurement only

8" x 22" or 22" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 24.5"] Adjustable Return Actual Filter Size – 24+ Product Details Perfect Fit & Easy Sizing Designed for a 8" x 22" or 22" x 8" duct opening (measured at the opening), with actual outer dimensions of 10. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 7. 75" x 21. 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