I have a Wave2k (2 months old) that is on a maintenance tank of mine. Personally I do not like it, and the owners of the aquarium do not like it. The person who originally did the setup picked it out. Basically they do not like the noise that it puts out from the motor, they are very picky people.
I do not have exact specs on it but it is one of the 13" center units costing about 215.00
http://www.wave2k.com/shopping.htm
It has a mod to it, the side panels have been sealed off with abs plastic (done by wave2k as a custom job) to increase forward flow.
There was also a seam that wasn't glued tight so I reglued it with weldon 16. Unit is pretty much like new. Doesn't have coraline or anything growing on it yet.
We would like to get 150.00 or would be willing to trade for a
Tunze Stream 6060/6080.
Thanks for looking.