POWERTEC 70164 2-1/4" OD to 1-1/2" OD Reducer Reduces from a 2-1/4-Inch to a 1-1/2-Inch hose Outlet diameter: 2-1/4-Inch and 1-1/2-Inch Tough, durable ABS plastic material Adaptable to Bosch, Festool, Dustless and a variety of other makers and models Ideal solution to keep dust at bay in any workroom; Use with POWERTEC 70130