Stabilised chlorine granules are ideal for daily dosing of your spa hot tub or swimming pool to produce free active chlorine which kills bacteria and other potentially harmful organisms. These Chlorine granules which are rapid dissolving and have minimal impact on pH. Keep PH levels between 7.2 and 7.6 and Chlorine Levels in a pool between 1-3 parts per million and hot tub 3-5 parts per million.
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