24" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille 3/8” - 4223 PSI

3/8” - 4223 PSI

actual front end outer dimensions are approximately 24 5/8" width X 31 5/8" height

+ Product Details Size – 30" x 36" or 36" x 30" is the size for the duct opening measurement only

unrestricted airflow with a precise 50° angled design

+ Product Details Size – 14"w X 30"h is the size for the duct opening measurement only

24" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille 3/8” - 4223 PSI+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 12" OR 12" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 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