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

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

High Quality – High-quality rust-free

875" width X 18" height

85" width X 13

26" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 10" OR 10" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 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