The MSR Guardian Gravity Purifier delivers high volumes of purified, virus-free water on-demand virtually anywhere on Earth.
Using the advanced technologies of our original Guardian purifier, this gravity-powered sibling has you covered with safe water around the world—from local backcountries to remote villages. Hang it while you go about your tasks at the hostel, basecamp or camp site. Its 10 L reservoir supports the daily water needs of multiple people. Originally designed to protect service members in the field, this rugged purifier handles the abuse of travel and meets the NSF P248 military testing standard.