22" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter rg1010 + Product Details Size –

+ Product Details Size – 4"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 16 5/8" height

+ Product Details Size – 18"w X 16"h is the size for the duct opening measurement only

If your duct opening is 14 inches in diameter

provides a modern look and quiet operation due to its half-inch by half-inch cube design

22" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter rg1010 + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 10" OR 10" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 9. 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