Danger Den CPX-PRO Pump previewed..

[Martinm210]

As much as I want to like that pump, the impeller looks cheaper than a $2 ho.

That's probably why it has more of a linear performance curve. But the more important part is the wearing surfaces. The actual shaft is ceramic like the RD-30 is, so while it doesn't look very fancy, I think durability should be there.

The RD-30 by contrast has a nice pressure oriented impeller, then they use a lesser efficient circular volute. I was happy to see the volute shape, and it shows in how it's doing so well in the low power consumption department.

The pump won't outperform a DDC 3.2 with a good top on it, but it's also about half the price that setup would run you.