If your concerned about the rubber rings (I wouldn't be....I've never heard
of any failing), put a hose clamp on them and "gently" tighten it up.

They give you a sponge, carbon, and BioMax.



"Bill Stock" wrote in message
et.cable.rogers.com...
I just picked up a Fluval 304 (Petsmart was giving them away - insert your
own joke), as I'll be moving to a larger tank later this year and want to
run a couple of 304s on it. It's running alonside my AC500 for now.

I searched for concerns regarding the flimsy rubber rings holding the
tubing
in place, but found none. I guess there aren't any horror stories out
there
about the output nozzle springing loose? I think I'll rubber band it as
well, you know belt and suspenders.

Secondly, they don't tell you what filter media they give you. One is
obviously Carbon and I gather the other is BioMax and not prefilter rings?