Installed one of the three filters and since I had a TDS meter measure unfiltered water and then some water that went through the filter they both read about the same thing means that the filter did not filter. I bought them to filter water here in Newark (#5) NJ so money wasted. I've done tests on bottled water and jug filtered water and they passed, so the meter failed. Don't waste your money on these useless "filters".
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