I would like to give a shout out to MSR. Their products (including water filters) are astoundingly well designed. They are in my top 10 favorite tool design gro

I would like to give a shout out to MSR. Their products (including water filters) are astoundingly well designed. They are in my top 10 favorite tool design groups in the world (among Beretta, Chris Reeve, and Trijicon). MSR especially has a tremendous focus on user maintainability and repairability. All of their products are designed to be easy to strip down to base components and reassemble - critical for life-preserving hardware. I keep their TrailShot filter in my bag whenever I go hiking. I also have one of those pen-style filters and never use it; the TrailShot is vastly more practical.