26" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Anodized Aluminum 875" width X 15

875" width X 15

actual front end outer dimensions are approximately 34 5/8" width X 12 5/8" height -

actual front end outer dimensions are approximately 20 5/8" width X 26 5/8" height

+ Product Details Size – 24"w X 24"h is the drop ceiling HVAC supply grille size - for T-Bar lay-in

26" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Anodized Aluminum 875" width X 15+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 75" x 25. 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