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Katadyn BeFree 3.0L Microfilter

Purchase BeFree 3.0L Microfilter

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$16.24 (25%)

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Katadyn BeFree 3.0L Microfilter

By Luke

Enwild Gear Specialist

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An ideal filtration solution for large groups, the Katadyn BeFree 3.0L Microfilter is a lightweight, easy-to-use filtration system. It weighs just 4 ounces, packs down small, and filters up to 2 quarts per minute!


An ideal filtration solution for large groups, the Katadyn BeFree 3.0L Microfilter is a lightweight, easy-to-use filtration system. It weighs just 4 ounces, packs down small, and filters up to 2 quarts per minute!

Eliminating the need for hoses or separate containers, the system integrates a 0.1 micron microfilter directly into the cap to remove bacteria and cysts, including Giardia and Cryptosporidium. No pumping is required and there's no need to allow time for purification to occur. Simply fill the reservoir and filtered water can be drawn directly from the nozzle. The filter’s hollow fiber EZ-Clean Membrane can be easily cleaned at home without the need for backflushing, brushes, or other cleaning tools. Note: The EZ-Clean Membrane has a capacity of up to 1,000 liters, depending on water quality and the EZ-Clean Membrane Replacement Element (sold separately) can be purchased to extend the life of the system beyond that point.

  • Easy to use
  • Easy to clean
  • Collapsible 3.0L reservoir packs down small
  • 0.1-micron microfilter is tested 99.99% effective in removing protozoa and 99.9999% effective in removing bacteria to EPA standards
  • 43mm wide-mouth opening makes for easy filling
  • Cap over the drink nozzle keeps out dirt
  • Tested to 1,000 liters, depending on water quality
  • BPA-free

Technical Specs

Best Use
Backpacking, Hiking, Cycling, Travel, Emergency Preparedness
Field Maintainable
Filter Material
0.1 micron hollow-fiber
Flow Rate
2 quart/minute
Bacteria and Cysts, including Giardia and Cryptosporidium
Item Weight
4 oz
2 Year Limited
up to 1,000 liters, depending on water quality

Our Thoughts

8 Reviews

4.5 / 5

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Big Papi


Have used three times so far backcountry camping. Worked well as a base camp filter, except the flow rate is a little slow.


Light. Good volume for base camp.


Slow flow rate.

M G.


Time will tell


To be completely honest I haven’t tested it yet. The mere reason for the purchase was to settle the mixed reviews I’ve seen.


Only time will tell which side of the debate this product will stand.

Jesse M.


Great filter


Very effective and easy to use


Water does not filter as fast as advertised

Holly M.


Could be great, but kinda slow and bag got hole 1st trip


It is light and great for base camp convenience . No back flushing . Once you work on getting the plastic’y taste out of the bag( lemon water- freeze - rinse) AND the filter ( lots of flushing then got creative with sitting dirty side in lemon water and then rinsing). Took time but worth it if you dislike the plastic taste.


Slow- but overall it worked well. The bag part is rather fragile. Second day on trail and it had a pin hole in it! A total drag and will probably return it. Temp fix with duct tape worked , but 2 days?? I’m not that tough on gear and it wasn’t stored with a knife or anything.

Kevin S.


Decent but expensive long term


Great flow rate and very easy to use. I like the wide mouth opening for filling up the water. It's nice to not have to wait so long to fill up and you can drink directly from the device which saves time while on a trail.


somewhat difficult to clean/backwash. It seemed easy from the reviews and description but i find it never gets fully cleared out. also, this can be expensive down the road because you will have to replace the filter more frequently than other products due to the inferior cleaning method and materials. That said, you sacrifice long term cost for the luxury of speed, storage and convenience. .

Kevin Q.


Best filter I have tried


Great flow rate makes water filtering chore so much quicker. Lightweight Easy to clean


None so far.

Bruce E.


easy to use lightweight and packs up extreamly small


Small, easy to use and lightweight


haven't found any so far

Bill B.


Easy to use


Lightweight, wide mouth to gather water with, only one bag and filter piece. Tried it on an overnight trip last week, it worked better than expected. It was easy to collect water and quick in filtering the water. I would recommend this over the 2 bag gravity filters.


Hard to close valve with only one hand when other hand is holding a cup that it is filtering in.