Superfish Combi Clear 2000 4-in-1 Pond Filter UVCSuperfish Combi Clear 2000 The one plug solution for small ponds. 4 in 1 underwater filter with pump, UVC, filter media and fountain nozzle. Easy and quick to use, no complicated installation with hoses, cables and all kinds of connections. Place the Combi Clear on the bottom of the pond, connect to power and the filter works! Stable base and large handle, makes placement in the pond easy. Filter chamber with activated carbon, CrystalMax and sponge