NEW

PureMax 4D

The truest form of water. Pure. Sustainable. Informative.
NEW

HydroCap

The choice you can live with. Fits all major wide-mouth bottle brands.
NEW

CrazyCap Pro

Our original, made even better. Industry leading UV purification performance.
WAATR is
designed for the community.

We are building the foundation for portable water purification systems, to help communities switch to a healthier and sustainable alternative to singles use plastic water bottles.

Highly effective. Highly awarded.

CrazyCap

TIME MAGAZINE

Best Inventions 2020 Award Winning Read More
PureMax 4D

GERMAN

Innovation Award 2022 Award Winning Read More
CrazyCap

WOMEN’S HEALTH

Fit Tech Award 2021 Award Winning Read More
CrazyCap

CNET

Best Self-Cleaning 2022 Award Winning Read More

Whatever you’re drinking:

Choose to drink better.

Return to water in its most natural, nourishing state.

CrazyCap Pro

The next generation of our original best-seller.

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PureMax 4D

The best water you can drink, anywhere.

Shop now Discover> Pre-order >

LYT

Light and easy, for water that takes you places.

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HydroCap

Keep any bottle you like. Get a cap that loves you.

Shop Now Discover> Shop now>

We know water.

So you can know better.

Every product you buy includes our free Fountain of Knowledge service:

Coming soon - Send us your WAATR filter, and we will share with you our water lab results. Learn what's hiding in your water, and how WAATR is changing your life.

Technology. Science. Mission.

4D Purification

Technology

Patented Purification

PureMax 4D fuses 2x 20mW UV-C LEDs with a proprietary blend of coconut charcoal + ion-exchange resin in a slim filter cartridge that leaves you with nothing but pure H20.

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UV-C Purification

Science

UV-C Sterilization

When biological organisms are exposed to our powerful UV lights, the proteins on the cell wall rupture. That renders them completely inert for water that’s clinically clean.

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Self-Cleaning

Mission

Safety for All

Beyond being a portable source of clean water, our caps automatically activate UV rays to clean and sterilize your water bottle from yucky mold, mildew, odors.

Learn more >