Pump replacement for Ocean Runner 6500

[bromion]

I have an old external Ocean Runner 6500 pump and I am looking for a replacement. The parts are hard to come by and expensive, and I just broke another impeller ($80 replacement!).

Any ideas for a replacement for this external pump? Ideally, I would want it to be quiet, have similar input/output (1.25" in, 1" out), do about 700 GPH at 5' head, and be as energy efficient as possible.

Thanks!

 

[hobbzz]

If it has to be external, look at panworld/blue line.

 

[bromion]

Anyone have the head loss curve for the Aqua Medic DC Runners? I can't find it anywhere.

 

[bromion]

I went with a DC Runner 5. Ridiculously quiet and quite powerful! I have to keep it on a low setting. I'm happy so far, though it's annoying they changed the plumbing sizes from the Ocean Runners.