This replacement filter cartridge is a game - changer for your MSR Guardian Purifier. It effectively restores the purifier's flow rate and can last for over 10,000 liters of water. It's a powerful purifier that eliminates viruses, bacteria, protozoa, as well as particulates such as dirt and sediment, ensuring you get clean and safe water every time.

Using your MSR Guardian Purifier replacement cartridge is easy. First, turn off the purifier and carefully remove the old cartridge. Then, insert the new replacement cartridge into the purifier, making sure it's properly seated. Once it's in place, turn the purifier back on and you're ready to start purifying water. When using the cartridge, always make sure the water source is not extremely dirty or contaminated. As for maintenance, it's a good idea to check the cartridge regularly. If the flow rate starts to slow down before the 10,000 - liter mark, it might be time to replace it. Store the replacement cartridges in a cool, dry place to keep them in good condition.