Showing results for 
Show  only  | Search instead for 
Did you mean: 
Membership now as great as the outdoors!
Already a member? Take a look at the Co-op Members section of the community.
Ready to join? Explore all of the benefits here.

Which UV purifiers will fit in a narrow mouthed water bottle?

Which steripen type UV purifiers will work with a narrow mouthed water bottle such as a Smart 1L bottle?

1 Reply

Hi there @outpac94!

While many purifiers are designed to fit with wide mouth bottles, there are some that can be inserted in a narrow bottle far enough to create a seal between the "pen" and the bottle so that the bottle of water can be flipped over and the water treated.

The Katadyn Ultra Water Purifier is an example of a purifier that should work for you in this case.

Hope this helps!  Additional information on water treatment can be found in our Expert Advice article about choosing a water filter or purifier!  

At REI, we believe time outside is fundamental to a life well lived.