Fits 6.5 gallon glass carboys. Top hole fits an airlock or racking cane. Typically I’ve seen these used to start a siphon
by putting the racking cane through the middle tube and blowing in the other tube until the liquid starts to flow out. OK, fine,
whatever you think about blowing into your fermenter. I wouldn’t. But I have seen another brewer (Phil) who will put a racking
cane through the middle and attatch a shop vac to the other tube, creating a vaccum that draws the beer from his boil kettle (and
through his counterflow wort chiller) down the racking cane into the fermenter. Again, you are on your own if you start brewing
with a shop vac.
Does not fit other carboy sizes or better bottles, if you are looking for that one Click Here