EHEIM reeflexUV reduces microorganisms in the water and eliminates turbidity more efficiently than ever before.  
reeflexUV is yet another typical innovation from EHEIM: due to a built-in reflector the microorganism killing UV-C radiation is significantly increased and whereas in conventional UV-sterilisers the water is directed via detours past the UV-C burner, in the  EHEIM reeflexUV water it takes the direct route. There is no loss of performance, you need less energy and the level of effectiveness is 1.8 times greater.
reeflexUV should only be used in conjunction with the filter, in order to reduce small organisms (microorganisms, algae spores etc.) in the aquarium.  
There are 3 models available for aquariums from 80 up to 800 litres.
Benefits of the EHEIM reeflexUV
Quickly and efficiently reduces both harmful bacteria and fish parasites in their infectious stages in the water
Eliminates turbidity caused by algae or bacteria  
Internally fitted high gloss aluminium reflects the UV