14" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Width_20in actual front end outer dimensions

actual front end outer dimensions are 22" width X 6" height

accordion-title { font-size: 18px

actual front end outer dimensions are approximately 12 5/8" width X 20 5/8" height

+ Product Details Size - 18"w X 18"h X 2"d (for duct opening measurement only)

Easy Installation – Complete set of sponge gasket and mounting frame included

14" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Width_20in actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 12" or 12" x 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 11. 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