Sawyer Mini FilterAt just 65grams, and fitting in the palm of your hand, this is simply the best there is for Weight, Size and Performance. Drink directly as a straw, attach to Sawyer Squeeze Pouches, use inline, or attach to standard threaded bottles. The MINI uses the same exclusive 0. 1 micron hollow fiber membrane filter used in our other filters. Although not quite as quick as the SP129 version, you will still be bowled over by the flowrate of this amazing little