14" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 24" OR 24" x 26" duct opening (measured at the opening)

actual front end outer dimensions are approximately 41

actual front end outer dimensions are 26

High Quality ABS Plastic - Will Last Forever & NEVER RUST

actual front end outer dimensions are 21

14" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way + Product Details Perfect Fit+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 8" or 8" x 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 7. 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