 Hydor Koralia Magnum powerheads are an evolution in powerhead design. They are very similar to the others but are larger and produce a lot more water movement for the power consumption. They also are a lot bigger physically and contain an electronic start-up system.
Hydor Koralia Magnum Powerheads have evolved rotors and impellers which make them more power efficient and produce a higher volume of water than any other powerhead for their size. They have a ball joint on their unique suction cup magnet system which allows the powerhead to be easily adjusted and direct the flow in any direction you like.
Technical specs
5 - 1650GPH- 8W Power Consumption
6 - 12200GPH - 10W Power Consumption
7 - 2800GPH - 12W Power Consumption | 
