Turbelle® nanostream® 6095
(6095.000)
WIDE FLOW
for aquariums from 100 to 1000 litres
(25 to 265 USgal.).
Flow rate: 2,000 to about 9,500l/h
(550 to 2,500 USgal./h)
Energy consumption: 5 - 21W
Power supply unit: 100-240V / 50-60Hz
Cable length: 5m (196.8 in.)
Dimensions: diam. 70mm (2.7 in.)
Output: diam. 50/10mm (1.96/.39 in.)
Magnet Holder with Silence clamp up to a glass thickness of 15mm (1/2")
There are six or so small modules you can swap out that plug into the power supply to change the voltage to the pump, thus changing the flow. You can download the owners manual on the website. I've got two and think they are really good pumps.