14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Diameter 875" width X 13

875" width X 13

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 22" OR 22" x 18" duct opening (measured at the opening)

each available in a variety of high-quality materials like brushed nickel

actual front end outer dimensions are 11

75" width X 13

14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Diameter 875" width X 13+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 34" OR 34" X 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 33. 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