SpaGuard Spa Chlorinating Concentrate - 5 Lb Go to amazon.com Related posts 16 best xtra blue chlorinating granules 6 in 1 for 2022 FeatureFast actingAdd as needed to maintain 3-5ppmActs as a sanitizer and an oxidizer; no need for two productsMay be added directly to spa, no predissolving needed.Quick dissolving
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