34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w32h32 + Product Details Size -

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

Actual Filter Size – 29 3/4"w x 11 3/4" x 1"

Actual Filter Size – 11 3/4"w x 25 3/4" x 1"

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+ Product Details Size – 28" x 32" or 32" x 28" is the size for the duct opening measurement only

34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w32h32 + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 6" Or 6" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 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