Up until now virtually all roll filters have required either remote placement before the sump, or a pretty large, open sump to accomodate the larger footprint of these big spools of mesh and cloth. The new CoralVue Klir totally upends this paradigm by radically reimagining what an automatic filter roll should be.
Incredibly, instead of being big and broad, the new Klir Filter is long and skinny and is specifically designed to closely fit into the filter sock holders of many different sumps. Not only that, but there’s also two models of the 2018 Klir Filter, a four inch model and a larger seven inch model.
Looks like these things are getting to the point where it's a drop in solution for a reasonable price. $249 for the smallest auto model.
As you see in the vid, the idea is that it can go in the space that used to be used for your filter sock.