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How it works? Just fill and squeeze.
Trusted by Data
Including E.coli, Salmonella, Giardia and Cryptosporidium.
Data tested by SGS
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OASSAY® Pro Water Purifier Bottle
$75.00
Unit price
Regular price
per
🧳 Lightweight & Compact
✈️ Perfect for Travel
💧 Squeeze & Drink Instantly
A lightweight squeeze-based water purifier bottle for travel and everyday exploration.
The OASSAY Pro Water Purifier Bottle is a versatile, portable water purifier designed for outdoor enthusiasts, travelers, and everyday use. Combining dual-stage filtration with modular adaptability, it offers convenient squeeze-based water purification.
Its unique cup-head design allows standalone use or integration with standard bottles and hydration systems.
OASSAY® Pro Titan Water Purifier Bottle
$99.00
Unit price
Regular price
per
🔥 Fire-Safe Titanium Cup
🏔 Built for Serious Outdoor Exploration
🤝 Heat, Share & Rehydrate
A squeeze-based water purifier bottle with a detachable titanium cup
The OASSAY Pro Titan Water Purifier Bottle is a versatile, portable water purifier designed for outdoor enthusiasts, travelers, and everyday use. Combining dual-stage filtration with modular adaptability, it offers convenient squeeze-based water purification.
Its unique cup-head design allows standalone use or integration with standard bottles and hydration systems.
Trusted by Real Reviews
@Build The Dream
"I can just put close it up and drink. This is so much better than some sort of straw or anything like that."
@Louie Seddon
"It's lightweight simple to use and built for adventures on the move."
@Outdoors Survival Hub
"It's perfect for bushcraft, camping, hiking, and survival situations."
@The Survival Outpost
"From clean wilderness creeks to the dirtiest urban water sources. Oassay FlexFlow performs in true survival conditions."
@Neil Begasa
"Whether it's for hiking, travel, or daily use, this bottle is designed to go where you go."
@Chloe
"This OASSAY bottle allows you to drink water from ANYWHERE!"
OASSAY® Pro Titan Water Purifier Bottle
🔥 Fire-Safe Titanium Cup
🏔 Built for Serious Outdoor Exploration
🤝 Heat, Share & Rehydrate
A squeeze-based water purifier bottle with a detachable titanium cup
The OASSAY Pro Titan Water Purifier Bottle is a versatile, portable water purifier designed for outdoor enthusiasts, travelers, and everyday use. Combining dual-stage filtration with modular adaptability, it offers convenient squeeze-based water purification.
Its unique cup-head design allows standalone use or integration with standard bottles and hydration systems.
$99.00
Unit price
Regular price
per
Color
Moss Green
Testimonial
from our
verified users
"I've been part of a number of Kickstarters over the years. Rarely does anyone get it exactly right the first time, but I think that should be expected. What I didn't expect in this project was how amazingly responsive, friendly and proactive the people behind it have been — they've answered all my questions, always gone above and beyond to provide more information than I asked for, and gone the extra mile to fix any issues that arose.Usually I'm reluctant to back something on Kickstarter, but I'd back another Oassay project in a heartbeat! "
@Trevor R
verified user
"Received my Filters and bottle in Los Angeles, California today. Items have high quality appearance. Looking forward to using the filtering feature in the future. Thank you very much Oassay for creating such a wonderful product."
@Alvaro Peralta
verified user
"Thank you for the update! I've been using it for about a month now, and so far everything has been running smoothly. I’m happy with it😊.It’s nice to know that my product will be covered if any issues come up in the future, I really appreciate it, you guys have done a good job."
@Arthur
verified user
"All that is said here is true! Caroline as the front person, has been transparent & honest & the after sales is amazing.
If the team says something is so, you can believe it!"
@Peter Hamburger
verified user
Why We Built OASSAY
FLEXFLOW PRO
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Bacteria Removal Rate
99.999
%
Max Flow Rate
20
ml/s
Bacteria Removal Rate
99.999
%
Max Flow Rate
20
ml/s
Flow Rate Test for Turbid Water Filtration (With vs. Without Backwashing)
Our warranty policy is 2 years for all products.
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If anything goes wrong with your OASSAY within 2 years, we'll replace the part or the entire product. No questions asked.
We built OASSAY to last. And we stand behind it.
Let customers speak for us
New version is much better with the locking cap. Great product which I've supported since the kickstarter.
Alasdair B.
I've been testing this bottle at home for a few weeks and everything has been working well so far. The filtration has been good and the bottle is easy to use.
I'm taking it to Sri Lanka next month, so I'm looking forward to putting it through a proper real-world test.
Emma W.
good
nancy
I used to bring regular water bottles on hikes. Once I ran out of water, I couldn’t bring myself to drink from nearby streams. This filter bottle has really been a huge help. You do need a little practice squeezing to get the hang of it, but it works great once you get used to it. It meets exactly what I was hoping for.
nancy
This filter bottle has become my go-to gear for outdoor adventures. It’s lightweight, compact, and easy to carry in my backpack. I’ve tried it on a hike, and whenever I find a stream, it works great. Being able to filter and drink water right there on the trail is incredibly convenient.
Leo R.
Overall, it’s a great bottle for outdoor trips and travel, and the flow rate during filtration is totally normal. It would be even better if the small cap used a screw-on design. I’m pretty satisfied with this bottle as it is.
Mathieu B.
good
María S.
I’ve just taken this bottle on a multi-day hike, and I find it really practical. I can pack fewer disposable water bottles in my backpack to cut down weight.
María S.
I bring this bottle to the gym to fix that metallic-tasting tap water
Wesley B.
Just realized the OASSAY filter bottle can double as an emergency tool. It’s compact, and if we ever get a sudden power or water outage, I can just use it to filter whatever water I can find.
Arthur M.
I’d also like to point out a few things about this bottle. It’s really lightweight so it barely adds extra weight to my backpack, which is perfect for all-day hiking. What’s more, the lid has an excellent seal. I stuffed it sideways in my pack and not a single drop leaked throughout my whole hike.
Jordan C.
This set with the titanium cup works well for me. The cup fits neatly under the bottle base, making it really easy to carry out. It’s also convenient when I need to share filtered water with my hiking partners.
Jamie R.
The water comes out so smoothly when I squeeze it.It’s such a great pick to bring along for hiking.
Jordan C.
Very smooth experience shopping here, thank you!
Olivia H.
Looks very solid and powerful, the flow rate is good!
Olivia H.
