MSR Guardian Gravity Purifier

Best for

• Base camp water purification
• Group hydration needs
• Travel and expedition use
• Hands-free gravity filtration

Things to know

• Removes 99.99% viruses, 99.9999% bacteria, 99.9% protozoa
• liter reservoir covers multiple people’s daily water needs
• Two-stage purification with activated carbon for taste and chemical reduction
• No backflushing required for cleaning
• Meets NSF P248 military testing standard for rugged use

Avoid if

• Heavy at 530g, less suited for ultralight backpacking
• Requires setup to hang reservoir for gravity flow
• Not intended for rapid on-the-go filtration

How it fits into a trip

Best for base camps or group trips needing large volumes of safe water with minimal effort and reliable virus protection.

About this product

MSR Guardian Gravity Purifier brings state-of-the-art virus protection in an easy, high-volume gravity system.

Ensuring you are provided with safe water around the world, removing viruses, bacteria, protozoa, sediment and microplastics hands-free.

Simple to use, you can hang it while you go about your tasks at base camp, campsite or your accommodation whilst travelling.

The 10L reservoir can provide the daily water needs of multiple people from a single fill.

With the Guardian Gravity Purifier having been originally designed to protect service members in the field, it means this rugged purifier can handle the abuse of travel and it meets the NSF P248 military testing standard.

Features: Ultimate Virus Protection: Meets NSF protocol P248 military testing standard for removing viruses (99.99%), bacteria (99.9999%), protozoa (99.9%), sediment and microplastics from “worst-case” water conditions.