32" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return actual front end outer dimensions

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

75" Width X 15

+ Product Details Size – 20" x 28" or 28" x 20" is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 28" OR 28" x 32" duct opening (measured at the opening)

during winter

32" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 14" OR 14" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 13. 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