8" x 16" or 16" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 18.5"] Color_R-4.2 Yellow Designed for optimal airflow and

Designed for optimal airflow and lasting durability

high-impact plastic

Crafted from durable ABS plastic

or commercial environments

8" x 16" or 16" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 18.5"] Color_R-4.2 Yellow Designed for optimal airflow and+ Product Details Perfect Fit & Easy Sizing Designed for a 8" x 16" or 16" x 8" duct opening (measured at the opening), with actual outer dimensions of 10. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 7. 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