Looking for a feature-laden, premium UV system? Then Puretec Radfire’s RI-17K of UV systems should be your choice. When looking at this line, it is easy to see how this product is truly different from everything else in the market. Puretec Radfire’s state-of-the-art controller is a constant current electronic power source housed in a splash-proof case and comes standard with a “future proof” expandability port for future upgrades or options.