Meter readings for tap water average between 75 and 300 and can go even higher. Conventional water filters only take out a small portion of these dissolved solids which can cause bad tastes.
With your TDS meter you can test your water yourself, and taste the difference. Zero Water® is the only filtered water from a pitcher that meets FDA definition for purified bottled water.* So, if it’s not all zeros, it’s not ZeroWater®. Also use your tester to monitor filter replacement: when your meter reads 006, it’s time to replace your Zero Water® filter