This is actually what I’m going to be doing moving forward I think though.
I found a leather punch that the od of the spool. I don’t think we need to much depth, so now I can punch of a few layers of whatever size I want, I have 25 down to .5, then I take one of those rings you made me and wrap some teflon tape on it until it’s tight, push the filter discs down, then use the ring as a retainer.
I think it might work great. I have a step down filtration, and I’m not using nearly as much material as before. I don’t know if the filter depth needs to be super deep.