22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 8 5/8" height

Slots Are Angled to Diversify The Airflow In 2 Way Direction - Great for Wall and Floor & ceiling Applications

Filter Size - 31

Whether you choose the modern contemporary

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

22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10in diameter actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 30" OR 30" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 29. 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