There is a guy in Loveland selling a Vortech Vectra L1 for $300. Been used for 6 months. I literally know nothing else about it, saw it on the Colorado Reef Keepers page on Facebook. His name is David Sanchez. Looks like the L1 can go from under 500 GPH to over 3000 GPH, but it's all controllable. If you want I can get his contact info?