new vs old Tunze Wavebox...

[GreenSpottedPuffer]

Originally Posted by gobytron

thank you for that...
seems like a nominal difference, but considering what a sureflow upgrade can do for an mj, it's not surprising.

I'm not sure the impeller is much different performance wise (as in more flow). I think it's just a matter of not breaking as easy now. They were breaking often with the old design. But then you could always send the broken one to Tunze and they would send you a new one for free. That is why I have an 'older' wavebox but new impeller.