The UV20 Series is made to provide clean and disinfected water at a flow rate of 8-10 GPM. This system is ideal for whole house water treatment. In addition to disinfection, the double and triple stage options provide filtration for the removal of sediment and chemical contaminants (carbon). This ultraviolet water purification system makes a perfect complement to distillers, reverse (RO osmosis systems), water softeners, ozone systems, and etc. This PURA system has proven to be one of the most popular products and has created an industry standard in whole-house disinfection for the home.