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KatadynGravity BeFree 3.0L Microfilter

KatadynGravity BeFree 3.0L Microfilter

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5 out of 5 stars
4 Reviews

Gravity BeFree 3.0L Microfilter

Easy to use and quick to work, the Katadyn Gravity BeFree 3.0L Microfilter is your ticket to clean water whether you're thru-hiking the AT or just camping  out for the weekend. It features a hollow fiber filter that can process up to 2 liters of water per minute, eliminating microorganisms like protozoa and bacteria. The 43mm wide-mouth opening makes for easy filling from lake, river, or tap, and the integrated bail handle and carry loop let you hang it while it filters. To clean the filter in the field, simply shake or swish the EZ-Clean Membrane to remove debris.


  • Portable filtration system for backpacking and camping
  • Hollow fiber filter effectively removes microorganisms
  • Quick gravity action can filter 2 liters per minute
  • Collapsible reservoir is lightweight and packs small
  • Tested to filter up to 1000 liters of water
  • Item #EXT000M

Tech Specs

protozoa and bacteria
EZ-Clean Membrane (hollow fiber)
Pore Size
0.1 micron
Cartridge Life
2 liters/min
Field Cleanable
filter, 3.0L reservoir, quick-release hose kit
15.2 x 9.1in
Claimed Weight
Recommended Use
backpacking, hiking
Manufacturer Warranty
1 year

Overall Rating

5 based on 4 ratings

Review Summary

5 Stars - 4 reviews
4 Stars - 0 reviews
3 Stars - 0 reviews
2 Stars - 0 reviews
1 Stars - 0 reviews

Fits Small

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