Keep your purifier performing like new with the MSR Guardian Filter Cartridge Replacement (Model 02407)—a critical upgrade for maintaining safe, high-flow water filtration in the backcountry or during global travel. Designed specifically for the MSR Guardian Water Purifier, this replacement cartridge ensures continued protection against harmful contaminants while restoring optimal performance.

Built with advanced hollow fiber filtration technology, this cartridge removes viruses, bacteria, protozoa, and particulates, making it one of the most reliable purification solutions available for extreme environments.

Why You’ll Love It
Full-Spectrum Protection – Removes viruses, bacteria, protozoa, and sediment
Restores Flow Rate – Returns purifier performance to ~2.5 L/min output
Long Lifespan – Filters up to 10,000+ liters before replacement
Military-Grade Reliability – Built for demanding expeditions and emergency use
Self-Cleaning Compatible – Works seamlessly with Guardian’s self-cleaning system
Made in USA – High-quality construction with a 3-year limited warranty

Built for Extreme Conditions

The MSR Guardian system is trusted worldwide for its ability to purify water in remote, contaminated, or unpredictable environments. This replacement cartridge ensures your system continues to deliver safe drinking water in the harshest conditions—from alpine expeditions to international travel and emergency preparedness.

Unlike basic filters, the Guardian cartridge is engineered to meet rigorous purification standards, making it ideal for situations where water safety is critical.

Product Specs
Model: 02407
Weight: ~6 oz (0.18 kg)
Dimensions: ~2.75" x 2.75" x 5.75"
Filter Media: Hollow fiber
Flow Rate: ~2.5 L/min
Cartridge Life: 10,000+ liters
Protection: Viruses, bacteria, protozoa, particulates
Compatibility: MSR Guardian Water Purifier

Perfect For:

Backpacking • Expedition Travel • International Travel • Emergency Preparedness • Survival Kits

Keep Your Water Safe

Don’t compromise on water safety. The MSR Guardian Filter Cartridge Replacement ensures your purifier stays reliable, efficient, and ready for any adventure—no matter how remote.