32" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated please note that the total

please note that the total outer dimensions of the grille measure 7" in diameter

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 20" duct openings

10" Diameter Is The Size For The Duct Opening Measurement Only

Actual Filter Size – 23 3/4"w x 15 3/4" x 1"

High quality – High quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

32" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated please note that the total+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 22" OR 22" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 21. 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