28" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter d padding: 14px 14px 6px 46px

padding: 14px 14px 6px 46px

+ Product Details Outer dimensions: 11

Center Core is Removable for Easy Access and Maintence

Adjustable airflow control – Adjustable airflow control: The system allows users to customize the amount of air supply

Experience hassle-free installation and full adjustability for optimal airflow

28" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter d padding: 14px 14px 6px 46px+ Product Details Perfect Fit & Easy Sizing Designed for a 28" x 26" OR 26" x 28" duct opening (measured at the opening), with actual outer dimensions of 30. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 27. 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