Sump return: Sedra3500 or QuietOne 1200?

[Delphinus]

Ok I never thought I'd do a "Please help me decide" thread but .. uh .. please help me decide?

I have a 65g tank that I need a sump return pump for. I had planned on using a Mag3 for this purpose, but it turns out it is far too noisy (this is a tank on the upstairs floor and it is near a furnace vent intake). Pump is run submerged.

Looks like two suitable alternates are the Sedra 3500 or a Quiet One 1200.

Can anyone with experience with either or both of these pumps let me know their thoughts?

What I need:
- submersible
- ~250 gph at 4' head (typical sump return scenario)
- quiet

Any other pump suggestions?