WHY 000?

When you buy a Zero Water filter pitcher we include a laboratory-calibrated water tester—called a TDS meter. TDS stands for Total Dissolved Solids, and represents the amount of dissolved substances in parts per million in the water we drink. These substances can negatively affect the way your water tastes.

Unlike conventional gravity-fed water filters, Zero Water’s patented 5-stage ion-exchange filter delivers the only filtered water to measure absolute 000 on the TDS meter. Compare that to the level in your tap water, even after being filtered through the leading filter pitchers.

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. When. 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

* Filtered potable tap water tested by an independent lab (not the FDA) to meet specifically the water quality requirements for using the label "purified". Compared to water produced by leading gravity fed filters.