36" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated at predicted low air motion

at predicted low air motion 35 fpm in the zone of occupancy

+ Product Details Size - 6"w X 28"h is the size for the duct opening measurement only

+ Product Details Size – 14"w X 24"h is the size for the duct opening measurement only

+ Product Details Size – 12" x 36" or 36" x 12" is the size for the duct opening measurement only

875" width X 8" height

36" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated at predicted low air motion+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 6" OR 6" x 36" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 75" x 5. 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