16" x 26" or 26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter ceiling providing a stylish and practical

providing a stylish and practical solution for ventilation

These are built heavy duty for installation into brick and cement walls

+ Product Details Size – 24" x 30" or 30" x 24" is the size for the duct opening measurement only

+ Product Details Size – 6" x 24" or 24" x 6" is the size for the duct opening measurement only

this grille is a testament to high standard craftsmanship

16" x 26" or 26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter ceiling providing a stylish and practical+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 26" OR 26" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 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