Mountain Safety Research

Guardian™ Purifier Cartridge Replacement


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This replacement filter cartridge restores your Guardian Purifier’s flow rate, and lasts up to 10,000+ liters. Removes viruses, bacteria, protozoa, and particulates, like dirt and sediment.

Made In USA of U.S. and Imported Materials


Tech Specs

Weight (Standard) 6 oz Weight (Metric) 0.18 kg
Width (Standard) 2.75 in Width (Metric) 7 cm
Length (Standard) 5.75 in Length (Metric) 14.5 cm
Height (Standard) 2.75 in Effective against bacteria Yes
Effective against particulate Yes Effective against protozoa Yes
Effective against viruses Yes Filter media Hollow Fiber
Filter pore size (microns) 0.02 Flow (L/min) 2.5 liters per min
Cartridge life 10,000 liters Field cleanable Self-Cleaning
Field maintainable Yes Water Bottle Adapter Yes
Cartridge replacement indicator Yes Material(s) Hollow Fiber
Country of Origin Made in the U.S.A. of U.S. and Imported Materials
NOTICE: Some products in this store can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Please check the product label for warning information. For more information go to We cannot ship any products into California that are affected by Proposition 65.

SHIPPING CHANGES: Due to new sales tax rules in the state of Colorado, effective June 1, 2019, purchases made online through JAX Mercantile for customers in the state of Colorado will only be able to be shipped to addresses within JAX current tax jurisdictions in Fort Collins, Loveland, Lafayette, and Broomfield. Customers in the state of Colorado who do not have shipping addresses within these zip codes may still opt for in-store pickup at any JAX store location when making a purchase on the JAX website. Learn more on our shipping and returns page.

Customer Service: 1-800-336-8314 Monday - Friday 9am to 5pm MTN