Quick-Fit dust collection duct adapter, For Nominal Duct Diameter 3 in, Inlet Diameter 3 in, Material Stainless Steel, Product Type Hose Adapter, Material Thickness 22 ga, Overall Length 5 1/2 in, Maximum Pressure Rating 42 in wc, Weight 0.6 lb, For Duct Height 3 in, Flange Inner Diameter Not Applicable, For Duct Width 3 in, Flange Outer Diameter Not Applicable, Maximum Airflow 345 cfm, Inside Diameter 3 in, Number of Holes on Flange Not Applicable, Overall Width 3 in