32" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated Ideal for Walls & Ceilings:

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

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

+ Product Details Size – 22" x 30" or 30" x 22" is the size for the duct opening measurement only

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 Ideal for Walls & Ceilings:+ 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