12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line actual front end outer dimensions

actual front end outer dimensions are approximately 31 5/8" width X 24 5/8" height -

Actual Filter Size – 11 3/4"w x 25 3/4" x 1"

actual front end outer dimensions are approximately 36 5/8" width X 32 5/8" height

75" width X 27

12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 32" or 32" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 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