TMC Vecton Titan UV 850

It is an ultraviolet (UV) device used for sterilization / purification of aquarium water, destroying microorganisms, bacteria, algae and pathogens. The “Titan” series features photocatalytic enhancement technology, i.e. a special coating / material that enhances the action of UV radiation (catalyst), making the device approximately 1.3 times more effective compared to regular UV systems.
Strong coverage (for up to ~850 liters), suitable for large aquariums.
Ease of installation and maintenance, thanks to multiple hosetail options and input / output reversal.
Good power / efficiency balance, 27W consumption for large volume.
Suitable for both freshwater and marine systems (especially for algae and fungus control).
The UV sterilization effect only affects microorganisms that are suspended in the water, it does not affect bacteria or organisms that "sit" on filters, rocks or substrate.  ...More