Certified to reduce
99.7%
Total PFAS (forever chemicals)
98%
Lead (and other heavy metals)
99.9%
TDS (Total Dissolved Solids)
Cleaner water starts at Zero
Culligan ZeroWater is a smarter way to filter. Our advanced 5-stage water filter technology uses ion-exchange filtration to remove 99.9% of Total Dissolved Solids (TDS) from your tap water. With a Culligan ZeroWater filter jug or dispenser, you’ll be left with nothing but the purest-tasting water.
How our filters work
Designed to reduce up to 99.9% of total dissolved solids - leaving you with the water you can trust.

Backed by numbers
Here at Culligan, we don't hide our results or talk in generalisations. After all, we're proud of our products, and want you to be safe in the knowledge that we do exactly what we say. So for a full list of everything that Culligan with ZeroWater Technology removes, see our latest results below.
Independently certified for peace of mind
We're committed to rigorous third-party testing and certifications, ensuring our products exceed expectations and deliver on every promise, which is why Culligan with ZeroWater Technology is independently certified by the IAPMO.

What does 'Zero Water' mean?
Each Culligan with ZeroWater Technology product comes with a free, built-in TDS reader - so you can see for yourself the results of our filters.
But what does 000 mean? Effectively, our Ion Exchange filtration removes virtually all dissolved solids that may be left over from public water systems or even leached into your water.
Three additional stages are included to remove other contaminants and to ensure your water receives the appropriate amount of treatment time to deliver a "000" reading on your water quality meter.
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Start your journey towards cleaner, purer-tasting water today