Recommended Brands
Sawyer
The Water Key encourages you to consider using only the highest quality water filtration and water purification systems on the market. Sawyer® definitely meets our approval.

These polycarbonate, flip-top water bottles have an advanced fast-flow inline filter so you can do more yet pack less. Our Filtering Bottle exceeds EPA standards to remove 99.9999% of all bacteria and cysts like giardia and cryptosporidium for 2,000 fill-ups. Our Purifying Bottle removes 99.9997% of all viruses as well, lasts for 12,000 fillups, and includes an adapter for use with a tap. Just fill and sip normally. It’s that simple and that safe. 32 oz. capacity with filter. USA/China.

 

Sawyer Water Bottles
Filtering Water Bottles

Sawyer’s Biological Filtration system removes 7 log (99.99999%) of all bacteria like salmonella, cholera, and E. coli. And 6 log (99.9999%) of all Protozoa such as Giardia and Cryptosporidium. You will find these removal rates to equal or exceed competitive options. EPA guidelines allow ten times more Protozoa left in the water than Sawyer® allows.
Price: $49.00
Sawyer Water Bottles
Purifying Water Bottles

Sawyer’s Viral Purification offers the same level of protection against bacteria and protozoa as the Sawyer® Water Filter, and yet it is the first and thus far only portable filtration device to physically removes viruses. Which it does at a >5.5 log (99.9997%) rate exceeding EPA and NSF recommendations. EPA guidelines allow ten times more Protozoa left in the water than Sawyer® allows.
Price: $129.00