Reduce germs quickly and effectively. With Eheim reeflexUV you can reduce germ loads and eliminate turbidity in the water better than ever before. ReeflexUV is a typical innovation from Eheim: The UV-C radiation is significantly intensified by a built-in reflector. Whereas in conventional UV clarifiers the water flows past the UV-C burner via detours, in the Eheim reeflexUV it takes the direct route. This means there is no loss of performance. You need less energy and the efficiency is 1.8 times better. ReeflexUV should only be used to support the filter in order to reduce small organisms (germs, algae spores etc.) in the aquarium. There are three models for aquariums from 80 to 800 litres.