NaCL Content - 99.72% It is produced in the form of a tablet with beveled edges, which allows not only to be better stored in the package, but also gives additional savings when loading into a tank - salt solvent. This form prevents the tablet from crumbling and leaves no residue on the bottom of the tank. Made from high quality raw materials - food boiling salt extra "Polesie". Designed to restore ion-exchange resins of water softeners used in the preparation and softening of water for food, pharmaceutical and other industries, in industrial and private heating systems and hot water supply, as well as in domestic water heating devices.