Binds silicates, nitrates and residual salt within the permeate (pure water in the reverse osmosis system). Colour indicator shows the degree of material exhaustion. A ready-to-used mixed bed resin that is also adequate for complete desalting and consists of equal parts of a cation and an anion exchanger. Duresin RI enables an electric conductibility of 0.1 μS/cm in all common mixed bed applications. Due to the usage of the alkaline anion exchanger Duresin RI, a very low silicic acid passage is guaranteed for the entire duration of use.
