36" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum - Cube Core actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 14 5/8" height

+ Product Details Size - 6"w X 34"h X 2"d (for duct opening measurement only)

Carefully packaged for protection during shipment

+ Product Details Size – 8" x 16" or 16" x 8" is the size for the duct opening measurement only

36" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum - Cube Core actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 24" OR 24" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 75" x 23. 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