DUV XA-D is an impressive product series that offers a choice of small to medium size water applications for municipal wastewater. The capacities of these products ranges from 5 to 1,200 m3/hr for every single unit, while the UV disinfection projects for waste water also works for re-use applications in general water quality parameters. This can result in a relatively low UV-c transmission of the water, while the LIT DUV-xA-D system design can enable optimum UV intensity distribution at the UV reactor level, assuring efficient disinfection performance, in accordance to the application characteristics for low UV transmission.