Aqua Ultraviolet AAV00030 15-watt UV Sterilizer for Aquarium, 3/4-Inch, Black

UV is versatile technology used for disinfecting water, other opaque liquids, hard surfaces and Air. Using the same germicidal rays as the sun UV sterilization is a Purely physical process not a chemical one so it doesn't Alter water’s Chemistry, taste, smell or ph.