24" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel + Product Details Size –

+ Product Details Size – 6" x 12" or 12" x 6" is the size for the duct opening measurement only

+ Product Details Size - The listed 6" diameter refers specifically to the size of the duct opening

Filter Size - 13

Size - 10"w X 10"h is the size for the duct opening measurement only

These grilles and registers give you an extra measure of quality that are visible to your family members and house guests

24" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 23. 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