[Stephie]

I don't know what they're actually called and I need suggestions for better search terms. I have extremely narrow tubing that can just about fit onto NB cups, even though it's a smidge narrower than NB tubing. There is absolutely no way it will fit over the huge Kangzhu "nipples". I've successfully connected real NB tubing to the Kangzhu cups, but it was so incredibly tight that the end of the tube tended to slowly "spit out" the cup over the course of the session, and it tore during the third session. Forcing this tubing to fit onto the kangzhu cups is obviously not an option, but I have no idea what kind of adapter I'm looking for. They may not even be called "adapters".

I can't just buy larger tubing because then it won't fit onto my electric pump. I could also just give up and buy some NB cups, but it seems a shame to just throw away my brand new Kangzhu cups, even though they were dirt cheap and arrived with one broken airlock.