18" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_White 14" Diameter Is The Size

14" Diameter Is The Size For The Duct Opening Measurement Only

Superior Airflow Control: Built-in damper lets you control how much air enters your room

actual front end outer dimensions are approximately 20 5/8" width X 34 5/8" height

75" height

18" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_White 14" Diameter Is The Size+ Product Details Perfect Fit & Easy Sizing Designed for a 18" x 6" OR 6" X 18" duct opening (measured at the opening), with actual outer dimensions of 20. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 17. 75" x 5. 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