This pump is new to the market and perfect for smaller ponds (up to 5000 litres, 2000 gallons). It can be used to pump dirty water to a filter or provide the flow for a watercourse. Though the Pontec name may be a little unfamiliar we can let you know that it is the budget brand of Oase. Oase are a German company who produce premium pond equipment - this pump, though cheaper goes through similar quality standards - this is proven by the three year manufacturers guarantee.