What is the most quiet return pumps?

[albert_dao]

For anyone interested, the Red Dragon pumps are also receiving a few awesome upgrades very shortly:

- Anti-calcium bypass, as found on the RD skimmer pumps, will now be a standard feature for all RD's.
- All impellers will now be equipped with Titanium shafts for increased durability.
- Mini RD's will now have custom CNC'd volutes much like the larger Deluxe lines. You can probably expect a slight increase in performance from this upgrade. I'm still not sure if this translates over to being External-use compatible yet, but we'll see in the next couple weeks =D

Pricing should remain constant - unless I'm missing something...