MSR Guardian Gravity Purifier - the leading gravity purifier. Let gravity do the hard work - simply fill the dirty water bag and connect to a water bottle or reservoir.

The Guardian Gravity Purifier has you covered with safe water around the world, removing viruses, bacteria, protozoa, sediment and microplastics hands-free. Simply hang it while you go about your tasks at the hostel, basecamp or campsite.

Its 10L 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.

Eliminate up to 3,000 plastic water bottles with a single filter cartridge. Perfect for camping, hiking, or international travel. Cut down on pumping time with the 10 L water bag - a favourite feature among group campers.