Zero Compromise Zero Doubt
Why choose Culligan ZeroWater’s 5‑Stage filtration
Get the cleanest drinking water possible with Culligan ZeroWater’s advanced ion‑exchange technology. Independently certified by IAPMO, our 5‑stage filter removes PFOA PFOS, lead, chromium and mercury, substances that other filters often miss.
How it works
ZeroWater’s filtration system uses five unique layers to deliver exceptionally pure water. It starts with a coarse filter screen that captures dust, rust, and visible particles, followed by a foam distributor that ensures even flow and removes finer sediment. These first two layers lay the foundation for cleaner, fresher-tasting water.
In the third stage, a combination of activated carbon and oxidation reduction alloy removes chlorine, organic compounds, and improves taste and smell, while also reducing metals like lead. This is followed by the fourth stage: a powerful ion exchange resin which targets dissolved solids such as nitrates, fluoride, and heavy metals. This is what brings the TDS reading close to zero.
The final stage uses a fine screen and non-woven membrane to remove any lingering ultra-fine particles. Together, these five stages create crisp, clear water with a noticeably pure taste ideal for daily hydration, hot drinks, or cooking.
What you should know
No plug‑in or plumbing required, just pour and go.
Flows slower than a two‑stage filter because it does more work.
Filter lifespan depends on TDS levels in your tap water. Each unit comes with a TDS meter so you can track when it’s time to replace.
Proof in performance
ZeroWater is independently tested and proven to perform where other filters fall short. Our five-stage system removes an impressive 99.6 to 99.9 percent of total dissolved solids, far beyond what conventional filters can do.
We are proud to be the only pour-through filter certified by NSF for lead, chromium, and PFAS reduction, and we are IAPMO-certified for reducing heavy metals and other harmful contaminants.
These certifications give you the confidence that every sip is backed by science and verified by experts.
