Jebao Gyre Generator
I don't know when or if it's coming to market, but Jebao/Jecod has cloned the Maxspect gyre generator.
http://reefbuilders.com/2015/12/17/...k-off-surfaces-as-jecod-cross-flow-wave-pump/
http://reefbuilders.com/2015/12/17/...k-off-surfaces-as-jecod-cross-flow-wave-pump/