20" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow Some of the best features

Some of the best features aren't readily apparent

actual front end outer dimensions are approximately 38 5/8" width X 18 5/8" height -

+ Product Details Size – 14" x 32" or 32" x 14" is the size for the duct opening measurement only

+ Product Details Size – 28"w X 34"h is the size for the duct opening measurement only

20" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow Some of the best features+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 32" OR 32" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 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