Shift Filter Cap - Backcountry

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Turn your wide-mouth insulated bottle into a filter bottle. The Aquamira Backcountry filter cap fits most wide-mouth insulated bottles on the market today, including the Aquamira Shift.

The Aquamira GRN Line Bacteria filter is the ideal choice for water filtration in the outdoors. This filter meets US EPA Purifier Test Standards for the reduction of bacteria and protozoans in EPA Type-I test water for 100 gallons of use. It proudly boasts a flow rate of up to 800 ml/min for immediate thirst protection.

Not effective against viruses.


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Treatment Type:
Replacement Cartridge
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Other Features:
  • Bacteria filtration for protection from biological contaminants in natural water sources
  • 100 gallon filter capacity for extended use in the field
  • Lightweight and compact for easy packing and reduced burden during activity
  • Fits most wide mouth bottles including Aquamira Shift bottle
  • Miraguard™ Antimicrobial Technology suppresses the growth of bacteria, algae, fungus, mold and mildew within the filter media
  • Certified lead free to NSF/ANSI 372
  • BPA free, chemical free, and iodine free
  • Filter made in the USA

    Technical Information
    The Series IV GRN Line filter is designed to be easy to use, lightweight, compact, and reliable. Frontier GRN Line filtration is achieved using Hollow Fiber Technology. The charged micro-glass fibers “pull” organisms as small as bacteria out of the water stream while still maintaining high flow rates and low pressure drops. GRN Line filters meet US EPA Purifier Test Standards for the reduction of bacteria and protozoans in EPA Type-I test water. Frontier GRN Line filters provide superior biological protection, high flows, and long service life in a compact, lightweight, and easy to use cartridge.

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