I'm not sure there's anything in those blue filter housings I bought! I've had this jug for over a year now and the first set of filters filters so slowly it's a bit annoying. This last set of 3 is worthless, water flows through them like a funnel. I noticed from the start that they didn't look like my first filters. The pH only reached 8, which is only a slight improvement over tap water. The color of the water also did not change the first time it was used, as was the case with previous filters. Money down the drain and no return.
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