Looked at them, but found it's much easier (and cheaper) to just get an oversized return pump and then use a SCWD inline instead, then you create waves off your return lines, not via more pumps in your tank.
SCWDs:
I took it one step further and put rotating heads on each return line as well, so that I have left-right wave AND rotating flow out of each head...
After I did this I was able to remove all powerheads from my system, and all my corals got pretty thick pretty fast, so I'm a big believer in water rotation :-)
Edited by improdigal - April 26 2013 at 12:51pm
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