DYMAX UV-FLO 5W -12/16MMThe DYMAX UV FLO is a quick connect in line UV sterilizer designed to easily attach along with any water hose including a canister filter, overhead filter, and even a return pump hose from a sump filter. The Dymax UV Flo helps purify water by removing chemicals, eliminating algae in the water, and eradicating suspected bacteria that could contribute to cloudy water, green water, and diseases. The UV FLO is also beneficial for planted aquariums not