Eheim Reeflex UV800 is a highly effective UV clarifier unit for fresh and marine water aquariums from approximately 400 to 800 litres. Eheim Reeflex UV800 quickly and effectively reduces microorganisms in the water. Quickly and effectively reduces microorganisms in the water Eliminates torpidity caused by algae or bacteria Internally fitted high gloss aluminium reflects the UV-C light and ensures extra efficient sterilisation Excellent results with low energy consumption (1.8 times higher effectiveness than conventional UV-sterilisers) No performance loss as the water is redirected using a special design Ideal also for breeder tanks, reduces risk of infection Attached purification bacteria are retained in the filter, because only floating organisms are captured Simple and safe maintenance and cleaning AUTO-OFF: automatic safety cut-off when changing lamp Simple fastening in or on cabinet or side of tank