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MSR Guardian Gravity Purifier Replacement Filter Cartirdge

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$179.89

$ 83 .99 $83.99

In Stock

About this item

  • Replacement, two-stage water purifier cartridge for the MSR Guardian Gravity Water Purifier system
  • Restores fast flow rates of up to 1L in 2 minutes; rated for up to 3000L (depending on water conditions)
  • 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
  • Additional, activated carbon helps remove chemicals and unpleasant tastes and odors
  • Includes: one replacement two-stage purification filter; measures 9.5 x 2 inches and weighs 4.5 ounces; made in the USA


The MSR Guardian Gravity Water Purifier Replacement Cartridge restores flow rates to your Guardian Gravity Purifier System. It can be used to refresh your existing system or stored as an on-hand spare for peace of mind, assuring zero downtime and plenty of capacity when you need your purifier most. Encased in a rugged, military-grade housing, it’s two-stage design utilizes activated carbon and hollow-fiber technology to purifiy water from most any source, meeting 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, while reducing chemicals and unwanted taste and odors from your water. The replacement filter measures 9.5 x 2 inches and weighs 4.5 ounces. Made in the USA. Manufacturer’s 3-year limited warranty.


glen carnahan
December 30, 2024
I take this system down river, and love how easy it is to use. It does require disinfecting but it's pretty easy and doesn't take long.