Air Conditioning Ducting Reducer Kit 6" to 4" 152mm 100mm Duct Connector + Tape
Air Conditioning Ducting Reducer Kit (Duct Connector + Aluminium Foil Tape). This kit enables you toreduce circular ducting systems from 6" to 4" and can also be used to enlarge outlets from 4" to 6" for a wide range of applications.