We believe clean water is an invaluable resource. Thats why, for more than a quarter of a century, Trojan has led the development of water treatment solutions using environmentally friendly ultraviolet (UV) light. Today,......We believe clean water is an invaluable resource. Thats why, for more than a quarter of a century, Trojan has led the development of water treatment solutions using environmentally friendly ultraviolet (UV) light. Today, Trojan has the largest installed base of UV systems in operation on the planet, and many of our innovations define the industry standards for safeguarding our water from the damaging effects of microbial and chemical contamination.