Spa Shock is a non chlorinating treatment for hot tubs and spas which contains Potassium monpersulfate. Spa Shock can be used with a Chlorine or Bromine system to help quickly oxidize organics form the hot tub water. Spa Shock does not effect pH levels and helps bring back the clarity to spa water.
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Fast shipping , Did what it was suppose to. I was very satisfied with this product.
Received within 48 hours of ordering, great price also.