24" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w20h20 actual front end outer dimensions

actual front end outer dimensions are approximately 24 5/8" width X 28 5/8" height

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

+ Product Details Size – 16"w X 32"h is the size for the duct opening measurement only

75" width X 17

24" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w20h20 actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 34" OR 34" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 33. 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