24" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 10in If your duct opening is

If your duct opening is 14 inches in diameter

+ Product Details Size - 6"w X 32"h is the size for the duct opening measurement only

Every register is carefully packaged with shrink wrap and cardboard backing to ensure it arrives in perfect condition

very easy to do

24" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 10in If your duct opening is+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 8" OR 8" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 7. 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