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Robelle Concentrated Chlorinating Granules is a super-concentrated, residue-free and fast-dissolving granular.

• • Active ingredient: 99% Sodium Dichloro-S-Triazinetrione;
  • provides 56% available stabilized chlorine.
  • Recommended dosage: 3 oz. per 10,000 gallons of water
  • every other day to maintain 1 to 3 ppm.

Robelle Concentrated Chlorinating Granules is a super-concentrated, residue-free and fast-dissolving granular. Kills algae and will rid your pool of unsightly algae spots. Ideal for use in vinyl lined, fiberglass or colored plaster surface pools. Calcium-free, so there's no need to worry about clouding. Great for use in spas, hot tubs and swimming pools. Cannot be used in a chlorinator.