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Originally Posted by FiltersFastEmailQuestions
1. Does this product iodine and if so, what strength?
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> 2. What is the shelf life of these tabs? AND how long have they been in your warehouses?
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These tablets actually do not contain iodine. They contain chlorine dioxide, which when mixed with water, turns into a gas and that is what removes the contaminants. It's actually more effective at removing things like Cryptosporidium than iodine. The tablets all have expiration dates on them, but the normally shelf life is about 4 years. I can't tell you exactly how long each product has been in our warehouse but it wouldn't be any longer than 4-6 months.