14" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Supply Grille 75" width X 9

75" width X 9

and a polished

+ Product Details Size - 4"w X 18"h is the size for the duct opening measurement only

+ Product Details Size – 6" x 16" or 16" x 6" is the size for the duct opening measurement only

+ Product Details Size - 25"w X 14"h is the size for the duct opening measurement only

14" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Supply Grille 75" width X 9+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 13. 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