MSR HyperFlow Microfilter – Filters & Purifiers: Reviews
Heading out the door? Read this article on the new Outside+ app available now on iOS devices for members! Download the app.
Not only is this the fastest filter we’ve ever tested; it’s also the smallest. This hot-dog-size baby easily gushes out two Nalgenes per minute. Plus, the HyperFlow attaches to almost every water bottle, and you can clean it without tools. 7.4 oz; msrgear.com
