22" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10in diameter with actual outer dimensions of

with actual outer dimensions of 24

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 30" duct opening (measured at the opening)

+ Product Details Size – 25"w X 16"h is the size for the duct opening measurement only

See our separate listing of T-Bar Supply Grilles

22" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10in diameter with actual outer dimensions of+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 24" OR 24" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 25. 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