IIRC Maxspect holds the patents to some design aspect of it maybe the long vertical blades? But I'm just guessing as patents in itself is a bit of a questionably sketchy field, Icecap needed to license it to bring to market, but they did bring out a more "affordable" version, I have a couple of these and they're fine as far as a pump I guess... it really is hard to say since at MACNA like demos with the glowing balls and stuff they tend to be in an empty tank to show case what it can do. Then Maxspect rereleased (rebranded?) in the "Jump" line of parts (they literally called everything "Jump", gyre pumps, return pumps, skimmers, LED). Red Sea released a gyre type pump, and IIRC Coralvue is the US distributor for all those brands including Reef Octopus so maybe it's a matter of an overly saturated market for a so-so pump? That doesn't even account for the knockoffs out there like Jebao. Heck I think one of the smaller ones (Icecap maybe?) you can put a "plug" on the other side of one and effectively make this exact pump with only one bladed side.