Unlock a true eco-conscious lifestyle

with HydroCap

Fits all major brands of wide-mouth bottles.
The Game Changing Sustainable

Hydration Accessory

Enjoy purified water from a self-cleaning bottle with zero-waste, chemical-free technology! Engineered to purify water with spatially placed dual 20mW UV-C LEDs.

Best in Class

With 100,000,000X purification against wide range of bio-contaminants such as bacteria, viruses, spores, pathogens, etc.


Dual mode water purification • Self-cleaning bottle • Hydration reminders • Smart safety sensor• Port-less charger • Rechargeable battery

Supercharge Your Favorite Bottle!

Fits all major brands of wide-mouth bottles.

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Think HydroCap

For Sustainable Hydration

Enrich your personal hydration journey like never before.

Packed with a ton of tech to deliver
Ultimate Performance

Patented spatially placed UV-C LEDs • Intelligent power management system • World-class rechargeable Li-ion battery • Non-contact near-field smart safety sensor • Patented UV-C shield • Tactile activation button • RGB ring LED indicators

Port-less Magnetic Charger

360° waterproof for maximum safety. Lack of ports protects the electronics from water damages. Key feature for safety.

Self-cleaning Bottle

Powerful UVC rays blast inside your bottle every hour for a few seconds to keep your bottle stink-free.


Compatible with Various Brands and Sizes

Perfect cap for your Hydroflask, Ironflask, Simple Modern, Takeya, MIRA, Klean Kanteen, FIFTY/FIFTY, Hydro Cell, Thermoflask, Gold Armour, and many others.

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Brand and Sizes 10 oz 12 oz 14 oz 16 oz 18 oz 20 oz 22 oz 24 oz 32 oz 40 oz 64 oz 84 oz 128 oz
Hydro Flask Wide Mouth
Simple Modern - Summit
Klean Kanteen
Hydro Cell
Gold Armour
Iron Flask
Refill with confidence!
Powered with spatially placed dual 20mW UV-C LEDs to minimize shadow effect for maximum purification against a wide range of bio-contaminants, such as bacteria, viruses, spores, pathogens, etc.

One HydroCap

Destroys >100M germs at a click of a button.

Provides zero-waste purification system.

Purifies 16K gallons of drinking water.

Saves >20,000 single-use plastic bottles.

Performs >80,000 automatic bottle cleaning cycles.

WAATR at Adventures
Sustainable hydration no matter where you are.
WAATR at Home
Purified water from a self-cleaning bottle.
WAATR at School
Ensure confidence on your next refill.
WAATR at Work
Part of your sustainable lifestyle.

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