Now available as a gravity version, the Guardian is made to fulfill the requirements of the NSF protocol P248: it filters up to 99.99% of viruses, 99.9999% of bacteria and 99.9% of protozoa as well as sediment and microplastics.
The 10 liter water bag makes this a very viable choice for group use. Just fill the bag, hang it from a tree branch, and wait a while.
The water bottles etc. shown in the extra images are not included.
Two stage filtering: hollow fiber for basic filtering, active carbon for reducing tastes
Easy to fill from a stream, lake, faucet etc.
Filtering speed up to 500 ml per minute
Carrying bag included
Made in the U.S.A