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Hydrogen Peroxide for pool and spas. Great price! Check out the strength...
Weekly add 500mls per 10,000L directly to the pool. For Winter 1/2 normal dose.
Each week add 100mls (1/2 cup) of Peroxide each week. Before adding, check Peroxide with a test kit. If the test result is below 4, add half a cup per 1000L to the spa.
Active constituent: 500 g/L Hydrogen Peroxide.