The Newa Wave 3.9 Circulation pump from Aquarium Systems is an ingenious powerful little circulation pump with half the wattage of leading competitors at half the price! This fantastic little pump has a patent pending powerful suction cup - tried and tested by the Warehouse Aquatics Team and with a whopping three year guarantee and extremely silent running noise we\'re hooked. Create natural currents in your marine or freshwater tank using any of the six models of Newa Wave pumps The pumps are a compact size and have fully adjustable direction of water flow Flow Rate: 3900 lph Recommend Aquarium Size: Marine: 170-250l Freshwater: 250-450l Wattage: 5.2W