10" x 22" or 22" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 12.5" X 24.5"] return filter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 26" OR 26" X 16" duct opening (measured at the opening)

actual front end outer dimensions are approximately 18 5/8" width X 24 5/8" height

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 4" duct openings

Full Control – Full 190 degrees control of air direction vertically & horizontally

+ Product Details Size – 22"w X 29"h is the size for the duct opening measurement only

10" x 22" or 22" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 12.5" X 24.5"] return filter + Product Details Perfect Fit+ Product Details Perfect Fit & Easy Sizing Designed for a 10" x 22" or 22" x 10" duct opening (measured at the opening), with actual outer dimensions of 12. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 9. 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