We've talked quite a bit about this and finally
GoGoUSA managed to find something close and for only $.99 for a pack of 10.
Here's what he says about it.
"Replacement Inner Fill for your cartomizers.
I have found this to be the closest replacement for the inner fill that actually works.
It is a bit thicker than the regular inner fill but seems to work just fine as a replacement. You get 10 or so 2"x2" fill pieces that you will have to cut to size.
Used to replace the inner (not outer) batting in cartomizers.
Enough for 10 or more cartomizers."
Unless you were talking about the fluffy filler and not the inner small piece of filler inside that. GoGoUSA also sells that or you can buy it at a pet store in the aquarium section. It's called "
Fluval Water Polishing Pad" so be careful you don't buy the other Fluval filters because they won't work.