little plastic bits for delivery tubes

What are they called ?! an inch long piece of rigid plastic tubing that goes half in the bung and half in the rubber tube. I need to make up some more delivery tubes, and prefer these to pieces of glass, but don't know what to search for !

Thanks :)
 
Gas delivery tube? We cut up bits of the ones Azlon make (maybe 50cm? straight sections) - haven't seen anyone else make plastic ones.
 
Gas delivery tube? We cut up bits of the ones Azlon make (maybe 50cm? straight sections) - haven't seen anyone else make plastic ones.
Cunning ! I had looked at the Azlon delivery tubes but could only find long and shaped ones. It didn't occur to me that I could chop a bigger one up :laughing:
Thanks !
 

CovTech

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I've seen them called tubing connectors, hose pipe connectors, tubing joiners, hose joiners and that's before you start having L-shaped or Y-shaped ones....
 
The azlon ones do melt slightly if you use them for distillation and boil the pants off it but are ok for sensible use.
 
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