201x4 is a high capacity, shock resistant, gelular,Type I ,strongly basic anion exchange resin. For Efficient Demineralibation Including Silica Removal201x4 is a high capacity, shock resistant, gelular,Type I ,strongly basic anion exchange resin supplied in the chloride or hydroxide form as moist, tough, uniform, spherical beads. 201x4 is intended for use in all type of deionization systems and ...