Crystal-clear water and inspiring depth of vision in the koi pond: This is ensured in the ProfiClear Premium Fleece 750 by the highly effective combination of mechanical depth filtration and generously dimensioned filter biology: Firstly, the fleece removes the smallest turbidity and dirt particles from the water. Then the bacteria colonised in the Hel-X filter medium and the integrated ClearWave blocks ensure its clarity. This fleece filter maintains koi ponds up to 38,000 litres in size, with a flow rate of up to 25,000 l/h. This powerful performance can optionally be retrofitted to existing systems. This filter is also compatible with the modules in the ProfiClear L series. And it is smart: digital control and monitoring of the water temperature and fleece consumption are quick and easy thanks to the interface to the OASE Control System.