I love the ZeroWater filter. Available everywhere.
A very ballsy marketing move is that it comes with a water impurity meter. It has three digits in the readout.
Read your tap water unfiltered, then after running it thru the filter. With a new filter it's always 000.
Kind of makes me want to try reading filtered water of other brands but I don't own any others.
Keep checking the water as you use it. When it gets above 006 they recommend replacing the filter but I'm cheap and I can't taste anything wrong at 006. I let it get up around 030 or 040 before I change mine.
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