I have the same concern about the nozzles on my filter (Odyssey) which is similar to this one. The reports I've read where someone complains about these "cheap," "crappy," "knock-off" filters is because theirs have started to leak. And in those cases, I noticed the leak always came from these flimsy nozzles. I bought mine anyway, didn't have much other choice at the time. So I already know the nozzles are the weakest, most problemmatic point when there is a failure. I could see why after I got mine and set it up. The nozzles are flimsy. So I'm extra careful about that whenever I mess with them.
My question now is: If the rest of this system is pretty reliable, as it seems to be, what could we do as a DIY kind of thing to upgrade or bypass those lousy nozzles altogether? I'm sure there aren't just convenient fittings we can pick up off the shelf somewhere. But maybe we could seal some tubing permanently into the place where the nozzles fit into the filter itself. (Removing the nozzles from this altered setup completely.) Then about 4-5 inches above that, just splice the tubing with a straight cut and install our own DIY fittings and connectors with some kind of shut off valve.
People do this kind of thing all the time with hoses and tubing used for lots of projects - even making their own gravel siphoning gadget when they don't want to purchase an actual python.