14" x 28" or 28" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return Grille actual front end outer dimensions

actual front end outer dimensions are 32" width X 10" height

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

Actual Filter Size – 25 3/4"w x 17 3/4" x 1"

actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height -

+ Product Details Size – 6" x 30" or 30" x 6" is the size for the duct opening measurement only

14" x 28" or 28" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return Grille actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 28" OR 28" X 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 27. 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