MSR Guardian Gravity Filter Replacement

<p>When the original filter unit of your Guardian Gravity Purifier Water Filter by MSR is used up, you can simply replace it with this replacement cartridge.</p><p>Tested to the strictest US military standards, the Guardian Gravity Purifier reliably filters out viruses, bacteria, protozones, sediment, and microplastics. Thanks to the two-phase purifier with activated carbon and hollow fibre, it is highly reliable and even improves the taste of the water.</p>