I wish I could see a bigger image of the older system. I remember those older systems well. FYI I almost did the rolling cart as well but I ended up buying the stand that went with the tank, I love the idea though. Having been using the Innovative Marine Skimmer for about 5 days now, so far I am happy that it's producing skim on a cycling tank with no live stock and I have no micro bubbles. Look forward to seeing how you like the Kessil.