24" x 32" or 32" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 10" Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 6" duct openings

with actual outer dimensions of 32

+ Product Details Size – 20"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 24"w X 26"h is the size for the duct opening measurement only

24" x 32" or 32" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 10" Ideal for Walls & Ceilings:+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 32" OR 32" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 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