I'm interested in upgrading my filtration setup to add a 6th stage, and I figure now is a good time. I'm putting my old system up for sale... it's a top grade setup, I paid $150 for it... refills are $40 or so on eBay. It has a sediment, two carbons, RO and DI. Picture and link below... it has all attachment hardware with it. You can respond or reach me at 533-9265 for a quicker response.
I just ordered the replacement, should be here in a week, the old one will be available as soon as the new one comes in, I can probably make it available now if you really want it. It needs replacement filter elements pretty bad, but otherwise is 100% good, the RO membrane is about two years old.
I would be interested in it if scott does not want it. I have a 2 stage RO filter right now and am needing to upgrade. This may be part of my problem not being able to keep hard corals. Anyways let me know what you and scott work out.