16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w36h36 10"w X 2"h Is The

10"w X 2"h Is The Size For The Duct Opening Measurement Only

actual front end outer dimensions are approximately 3

+ Product Details Size - 28"w X 28"h is the size for the duct opening measurement only

Versatility and Durability: The red oak wood not only adds a touch of warmth and softness to your room but can also be sanded and refinished according to your specific application needs

16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w36h36 10"w X 2"h Is The+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 24" OR 24" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 21. 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