I want to refer you to this article:
http://www.procooling.com/index.php?...s&disp=38&pg=1
Eheim 1250 --> 79" @ 28 Watts power consumption. AC pump
Eheim 1060 --> 122" @ 50 Watts power consumption. AC pump
MCP655 --> 86" @ 9 Watts power donsumption. DC pump
I cannot comment on 1260.
Iwaki MD20RZ --> 169" @ 50 Watts power consumption. AC pump.