Duct Mount Air Cleaner, Install Angle Right/Standard Angle, Compatible HVAC System Size 9 ton, Maximum Air Flow Capacity 4050 cfm, Filter Efficiency Not Applicable, Filters Down To Not Applicable, Primary Filter Performance Rating Not Applicable, Overall Depth 2 1/2 in, Overall Height 39 13/16 in, Overall Width 4 in, Air Cleaning Method Ultraviolet Germicidal Irradiation, Filters Out Bacteria, Fungi, Mold, Viruses, For Duct Cut-Out Height Not Applicable, For Duct Cut-Out Width Not Applicable