32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter white actual front end outer dimensions

actual front end outer dimensions are approximately 24 5/8" width X 26 5/8" height

875" width X 12" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 12" OR 12" x 26" duct opening (measured at the opening)

and a control lever designed for seamless operation

32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter white actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 36" Or 36" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 35. 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