24" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return filter + Product Details Size -

+ Product Details Size - 24"w X 30"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 10 5/8" width X 14 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 12" or 12" x 14" duct opening (measured at the opening)

actual front end outer dimensions are approximately 30 5/8" width X 18 5/8" height

Install 2 Vents

24" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return filter + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 14" OR 14" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 13. 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