MSR Guardian Gravity Purifier
$309.95
Description
For a stationary camp where viral treatment is part of the water plan, Guardian Gravity combines a 10-liter dirty-water reservoir with a hollow-fiber purifier and activated-carbon stage. Hang height matters: MSR’s approximately 0.5-liter-per-minute flow figure is based on a 6-foot hang. This is not a blanket solution for water contaminated by chemicals or toxins.
Specifications
MSR Guardian Gravity Purifier specs
- Weight (g): 530
- Length (in): 12
- Width (in): 4
- Height (in): 4
- Materials: UF Hollow Fiber, ABS
Included: MSR Guardian Gravity Purifier
- Dirty Collection Bag
- UF Purifier Filter Cartridge
- Silicon hoses
- Universal Bottle Adapter with Cleanside Cover
- Travel stuff sack and Instructions
Related camp equipment
Buying guide
Gravity water filters vs purifiers at basecamp
Questions
How is Guardian Gravity different from a basic gravity filter?
MSR specifies treatment for viruses as well as bacteria and protozoa. Many recreational hollow-fiber filters address bacteria and protozoa but not viruses.
Does the carbon stage make chemically contaminated water safe?
No. MSR describes activated carbon as helping reduce chemicals, taste and odor, but that is not a blanket claim that chemically contaminated or toxic water is safe. Choose an appropriate source and treatment method for the actual hazards.
Does a 10-liter reservoir mean 10 liters per minute?
No. Reservoir capacity and treatment rate are different. MSR lists about 0.5 L/min with a 6 ft hang; water quality, setup and cartridge condition affect practical flow.
May I assume the Gravity cartridge is freeze-proof because another Guardian model is?
No. Do not transfer claims from the Guardian pump to Guardian Gravity. Follow the exact Gravity manual for cartridge protection, inspection and care; do not rely on a possibly freeze-damaged treatment element.
Should I dry the Guardian Gravity cartridge inside before storing it?
No. MSR directs keeping the cartridge wet internally, without disassembling it to dry. Protect it from freezing and impact. After suspected freezing or damage, use the exact integrity-check procedure and replace a compromised cartridge.