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Manufacturer's Description

For virus removal and international travel.

Triple ion charged (+++) double-layered mesh captures 99.999% of bacteria, protozoan cysts (i.e. Giardia, Cryptosporidium) and viruses (i.e. Hepatitis A, SARS, Rotavirus)

Ultra-powdered activated carbon derived from coconut husks absorbs odors and flavors, industrial & pharmaceutical chemicals (i.e. BPA, Benzene, Chlorine), and heavy metals (i.e. Lead, Arsenic, Chromium)

Retailers' Descriptions

Here's what other sites are saying:

For use with its Ultralight Water Purifier Bottle, the Grayl replacement purifier cartridge provides full-spectrum protection against virus, bacteria, protozoa, sediment, chemicals and heavy metals.

- REI

The ultimate in filtration and purification technology, the TRAVEL Purifier by Grayl is suitable for the rigors of international travel and use in highly impacted wilderness areas. Designed to protect against viruses, protozoa, bacteria, heavy metals, and chemicals; the travel purifier is perfect for international use, hiking, camping, canoeing, fly fishing and most outdoor water sources worldwide.

- CampSaver.com

Features of the Grayl Purifier Cartridge Replacement filter cartridge for the Grayl Ultralight, Legend, and Quest Bottles Removes 99.9999% of virUses, such as Hepatitis A, SARS, and Rotavirus Also removes 99.9999% of disease-causing bacteria, such as E. coli and Salmonella, as well as 99.999% of protozoan cysts including Giardia and Cryptosporidium Filters particulates (sediment, silt), many chemicals (chlorine, benzene) and heavy metals (lead, arsenic) Improves the health, flavor, odor, and clarity of water you filter in the outdoors, or even at home Fast flow rate of 2 liters per minute Press time of 15 seconds per 16 ounces (473 ml) Each Purifier Cartridge provides at least three years of safe filtering after the initial use Lasts approximately 300 Uses (40 gal / 150 L) Made with ABS food-grade plastic and food-grade silicone Chemical and BPA-free, and antimicrobial Tested according to NSF/ANSI standards: 42 + 53 Weighs in at 2.8 oz (80 g) Measures 2.9in. High x 2.7in. wide

- Moosejaw

Refine the purification process with the Grayl G3 Plus Replacement Purifier. Designed exclusively for use with the Grayl Filtration Cup, the Purifier has double the filtration media of the standard G3+ Filter. Two layers of 3-part filter material employ a combination of ultra-powdered activated carbon, which sifts out more impurities than standard granulated or block carbon, a charged-ion mesh, which acts essentially like a magnet to pull pathogens out of the fluid, and an antimicrobial agent to inhibit the growth, between uses, of bacteria, fungus, mold and mildew. Designed for water sources with more potential contamination than the Filter, it will remove all the same common contaminants like lead and arsenic, many industrial and pharmaceutical chemicals, and impurities like sulfur and chlorine, along with 99. 999% of bacteria, protozoa, and viruses. With the additional media, the Purifier takes 30 seconds to process 16 ounces, but similarly lasts up to 300 uses, for 40 gallons of pure, potable water.

- Backcountry.com