It's a Hydor Koralia. It looks like it might work well. From the reviews I've read, they aren't as nice as a Tunze, but for the price they can't be beat.
Does anyone have one in their tank?
http://www.hydor.it/inglese/koralia.htm
http://www.aquadirect.com/store/home.php?cat=848
Does anyone have one in their tank?
http://www.hydor.it/inglese/koralia.htm
http://www.aquadirect.com/store/home.php?cat=848