12" x 16" or 16" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 14.5" X 18.5"] Powder-Coated 75"H – fits a 12"

75"H – fits a 12" X 12" duct opening

Actual Filter Size – 27 3/4"w x 21 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 14" or 14" x 12" duct opening (measured at the opening)

positioning supply and return grills accordingly

12" x 16" or 16" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 14.5" X 18.5"] Powder-Coated 75"H – fits a 12"+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 16" or 16" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 15. 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