UV disinfection, ultraviolet disinfection, UV water treatment Stainless steel housing, quartz UV lamp, quality ballast. UV disinfection, ultraviolet disinfection, UV water treatmentATLAS403- ... Built-in safety switch (eye saver) and UV intensity sensor- Friendly environment: free of ... UV lamp: 9000hours- Inlet /Outlet conector: 1-1/2", 2", 2-1/2", 3" and 4"- Housing finish: polished UV disinfection ...