Calcium Chloride Ingredient: CaCl2:74%, 77%, 90%, 94% Appearance: Flake/Pellet Synonym: Cal Plus, packing:25kg/bag Hardness IncreaserChemical: Calcium ChlorideSynonym: Cal Plus,Water ... : Flake/Pellet Features:Hardness Increaser is used to raise the calcium hardness level in the pool to the ideal range. Prevents ...