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;
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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;