28" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 26 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 25" OR 25" X 14" duct opening (measured at the opening)

Beige Metal

scratch-resistant surface that maintains its shine over time

Actual Filter Size – 15 3/4"w x 31 3/4" x 1"

28" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18" Diameter actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 28" x 6" OR 6" x 28" duct opening (measured at the opening), with actual outer dimensions of 30. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 27. 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