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Sodium thiosulfate is the main compound in most chlorine neutralizers. Any time municipal water must be used, use sodium thiosulfate (or our other dechlorinating formula) for instant neutralization of chlorine (do not add directly to water containing fish).
Dosage rates vary with the pH of the water, but rates between 1.6 to 2.6 parts sodium thiosulfate per one part chlorine should be adequate (excess levels of sodium thiosulfate up to 100 ppm will not harm fish). Made in USA.
International customers: Check with your customs agent to determine whether this product can be shipped to your country.