The Oase Filtoclear Pond Filter has long been considered the best pressure filter on the market. It combines superior build quality with a very robust easy-clean feature. In this set we have paired the Filtoclear 6000 with the bestselling PondXpert FreeFlow 6000 pond pump - this creates a filtration system with the ability to run successfully in a fish pond of 3,000 litres (660 gallons). Additional filtration provided by a 1,000lph air pump can see the filter system cope with a water volume of 3,500 litres.