Butanol; Chlorine; Calcium chloride; Chemical analysis kit for testing swimming pool water; Chemical preparations for testing swimming pool water; Chemicals used in the manufacture of paper; Chlorinated acids; Chlorine for swimming pools; Chlorine for swimming pools and hot tubs; Liquid chlorine; Reagent bearing test strips for testing swimming pool water; Shock treatment chemicals for use in swimming pools and spas; Waste water treatment chemicals for industrial use; Water purifying chemical...