Ducted vacuum single thread hose joiner. This joiner is used to quickly attach extension hose to the main hose. The joiner has only one side threaded (the other side has no thread). The threaded side is to be screwed to the extension hose, while the plain side is for temporary connection to the end of the main hose.
Please note that the joiner has a reverse thread, ie. anti-clockwise to fasten it or clockwise to undo it.
Size and Suitability: