Goodbye dry damaged hair, hello soft touchable tresses. Regular household water often contains such a high level of chlorine that it damages the appearance and health of hair. The T3 Source collection is clinically proven to make hair more beautiful, enhances the vibrancy and retention of hair color, makes skin noticeably softer and smoother. The Science of Fabulous. Through a chemical filtration process known as Redox, the T3 Source Shower Filter transforms chlorine into harmless elements that are too large to be absorbed by hair and skin. In fact, patented technology effectively removes more chlorine over a broader temperature range than other similar filters, resulting in: 64% reduction in Frizz, 28% increase in Body, 47% increase in Comb-ability, 28% increase in Shine. Beauty Everlasting. To ensure filtration unit is operating at peak performance, replace the filter every 5,000 gallons (4-5 months) or when the color indicator turns black. Reverse the filter monthly for best results.