Water is a critical element of the Pacific Crest Trail journey.
In the desert, water was scarce.
In the High Sierras, water was abundant.
But in both venues it was necessary to filter water on a daily basis. The Sagan water filters, specifically the XStream water filter system worked well in both venues.
The XSTREAM system fit two major criteria for thru hiking. One, it was easy to use and two, it weighs only 5 oz.
I found the system easy to use where there was standing or pooled water (not always the case in the desert). It was more conducive to instances where the filtering and carrying of 2 or more liters of water wasn't required.
Coupled with the Journey water bottle, the XStream water filter system is an effective filtering tool for hiking.
PCT Class of 2016