The Eheim specs for the 1250 should read 317 US gallons per hour, not 7317.
http://www.eheim.com
I was all set to buy an Eheim, and even saw a 1250 that was on sale for just a couple of dollars more than the 1048, until I read about the Rios...
That Rio 180 is actually more energy efficient than the 1048, and can be had for less than 10$

!!!
So I figure, since I was willing to fork out 60$+ for the Eheim, then I should be willing to get 2 Rios... and try to setup a redundant system.
But a lot of people say it's poorly shielded, and I can't find anywhere where it says that, even though it's submersible, it can be used in-line (a.k.a bone-dry). Anyone?
I'm not concerned about the shielding, but I am about the submersion.