WHY 000?

At the heart of every drop of triple-zero filtered ZeroWater® is an independent 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, ZeroWater’s patented 5-stage ion-exchange filter delivers the only filtered water to measure absolute 000 on the TDS meter. Compare that to the levels you’ll find in other filtered waters, most bottled waters and plain unfiltered tap water—all of which contain measurable amounts of dissolved substances. Meter readings for tap water average between 75 and 300. Conventional filtered water measures between 030-500, and bottle water between 000-350.

That’s why we give you the TDS meter absolutely free—so you can test it yourself, and taste the difference. When your meter reads 006, it’s time to replace your ZeroWater® filter. That way you’re always sure the water you’re drinking is 100% ZeroWater®—and 0% anything else. In fact, ZeroWater® 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®.

* 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.