Hydor Flow Deflector
 

Has anyone tried this ... http://www.hydor.it/inglese/flo.htm
Saw one at Big Als (Richmond) today. They have it on the outlet of the return pump ... kind of neat ...

Yeah I've got 2, great little units. They aren't maintenance free, like SCWD's etc they do have gears that will get blocked by debris (so run a pre filter) they clip right into 1/2" NPT fittings which is really nice.

Do trim off the big plastic ring on the back to reduce them to a reasonable size.

Cool idea.

According to that website, maximum GPH is only 310...that's not enough for me.