22" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Anodized Aluminum actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 10 5/8" height

+ Product Details Size - 36"w X 28"h is the size for the duct opening measurement only

Crafted for durability and rust-resistance

Filter Size - 5

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