Single chamber water filter ""Bio Top 10000 plus set"" (filter + pump + hose connector + UVC sprout remover) for ponds Max. Available with Elimax 2500 l/hour water pump, 4m/25mm + 2m/32mm hose connector and AlgClear UVC 10000 Germicide. This Elimax 2500 l/h water pump is only sufficient when using the filter. If you also want to install a fountain and/or waterfall in your pond, you will need to use a water pump that meets all your water needs. We are also at your disposal to help you choose the right pump. The Bio Top "basic set" range. This barrel-shaped single-chamber filter is available ready for use (complete with all necessary filter materials, mounting and connecting accessories and instructions for use). BioTop type filters must be installed on the lakeshore! They are supplied with: 1) filter sponge, 2) activated carbon, 3) special filtering granular media, 6) special bio-graders.