32" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Width_20in actual front end outer dimensions

actual front end outer dimensions are approximately 14 5/8" width X 24 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 16" OR 16" x 20" duct opening (measured at the opening)

+ Product Details Size – 32"w X 34"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 16 5/8" width X 10 5/8" height

To Maximize Ventilation Results

32" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Width_20in actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 20" OR 20" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 17. 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