The EHEIM ReeflexUV is an advanced ultraviolet steriliser designed to significantly improve aquarium water clarity and health by eliminating harmful microorganisms, algae spores and pathogens. Using highly efficient UV-C technology, it features a unique internal reflector that maximizes light exposure, ensuring faster and more effective sterilisation compared to conventional UV units. The bypass-free design allows direct water contact with the UV-C lamp, delivering superior performance without restricting overall flow rates. Safe for both freshwater and marine aquariums, the ReeflexUV helps reduce disease risk, control green water and maintain a cleaner, more stable aquatic environment.