DC Controllable aquarium pump, flow rate 8,000 lph Max head 5m Reliable and quiet, Marlin pumps are unique as they feature a wave maker function as well as just pumping volumes of water. Pump can be controlled to save power and made to surge elminating the need for lots of wave making pumps. Can be used in or out of the water 85w max 10w min power, constant flow rate (20 levels) Wave pulsing mode (20 levels) Ceramic shaft, locking impeller cover (no metal screws or parts) Six Pole Intelligent DC three-phase drive Dimension: 170*167*79 mm NO WARRANTY