34" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black actual front end outer dimensions

actual front end outer dimensions are approximately 32 5/8" width X 20 5/8" height -

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+ Product Details Size – 30" x 32" or 32" x 30" is the size for the duct opening measurement only

+ Product Details Size – 12"w X 28"h is the size for the duct opening measurement only

34" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 26" Or 26" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 25. 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