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MSR Sweetwater ViralStop Solution

by MSR
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SKU 15419
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ViralStop™ is a chlorine-based purifier solution that provides simple and fast virus protection - just add 5 drops of ViralStop™ to each liter of filtered water, mix for at least 10 seconds, and wait 5 minutes. ViralStop™ comes in a spill-proof dispenser bottle for accurate measuring. Proven effective, chlorine is used to treat over 95% of all U.S. tap water. Most people believe it tastes much better than water treated with iodine-based products.

ViralStop™ contains a special grade of Chlorine Solution, which prolongs shelf life and is EPA registered. The ViralStop™ solution has been carefully tuned for the best possible combination of performance (fewer drops per liter = less weight to carry) and shelf life.

With ViralStop™ as a key component, the Guardian™ Purifier System meets stringent EPA standards and inactivates 99.99% of waterborn viruses and eliminates over 99.9999% of all waterborne bacteria and 99.9% of common protozoan parasites such as Giardia and Cryptosporidium.

Attention: ViralStop purifier solution has only been tested and approved for use with the Guardian microfilter.


Prop 65 A (General): This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.