What's your main concern?
I've done enough crazy things with maxijets, and those style of canisters, that I am speaking with *some* authority on the subject (I know a thing or two about a thing or two
). I just don't use those canisters for media reactors currently as I have TLF's and Vertexes up to the wazoo/yingyang/something-or-other.
At least with the canisters I have worked with, the pushfittings for input and output are threaded into a tap on the canister. So it's just a matter of getting ones the right size. Most are 1/4" tubing but you can get 3/8" pushfitting to 1/4" threaded adapters.
Hope this helps