22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18in diameter Whether replacing an old register

Whether replacing an old register or installing a new vent

actual front end outer dimensions are approximately 18 5/8" width X 38 5/8" height -

actual front end outer dimensions are approximately 22 5/8" width X 30 5/8" height

+ Product Details Size – 12" x 22" or 22" x 12" is the size for the duct opening measurement only

22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18in diameter Whether replacing an old register+ 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