UV technology is proven to control microbiological (bacteria & virus) issues in water including E.coli, Cryptosporidium, and Giardia Lamblia without the use of chemicals. The Aqua Flo Gen Series Systems are advanced residential UV systems. Sleek and stylish, the Gen Series systems are designed and manufactured to ASME pressure vessel standards, all Gen Series models feature high quality stainless steel reactors, long-lasting UV lamps, visual lamp failure indicators and constant current electronic controllers.