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Katadyn

Katadyn BeFree 1L Collapsible Water Filter Bottle

  • 1 liter collapsible bottle
  • 0.1 micron hollow-fiber membrane
  • 2 liters per minute flow rate
  • 1000 liter filter capacity
  • 2.24 ounces, BPA-free
  • EZ-Clean membrane, up to 1000 ppm TDS

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A collapsible bottle with a hollow-fiber filter that the title says removes bacteria, protozoa and sediment. The included components list only the filter membrane, so check what ships with the bottle.

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ASIN: B075X5R67TCategory: Camping Water Filters

Colors Available

ClearNew Model - BlackNew Model - Misty RedNew Model - Moss GreenNew Model - Slate Blue

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Overview

Filtering water through a hollow-fiber membrane fitted to a collapsible bottle, the BeFree is made for trails and travel. The filter is rated to take bacteria, protozoa and sediment out of the water, per the title.

The reason to look at it is a very light filter with a fast stated flow rate and a membrane that is easy to clean. The limitation is that the data does not say it removes viruses or chemicals, and the item type field is wrong.

Who it's for

Backpackers, hikers and travelers filling from streams will use it as a lightweight daily filter. Anyone drinking from sources with chemical or viral risk should look for a purifier with that rating.

Pros and cons

Pros
  • Collapsible bottle packs flat
  • Fast stated flow
Cons
  • Virus removal not stated
  • Included components list only the membrane
  • Bottle compatibility not listed
  • Power source reads gravity-fed

Performance notes

A hollow-fiber membrane has pores so fine that bacteria and protozoa cannot pass, which is the filtering mechanism. Flow slows as particles build on the fibers, and the cleanable design lets the user flush it to restore speed.

Where it stands among camping water filters

  • #3 most-searched brand and model of the 25 camping water filters lines we track (by search demand, not sales).

From the specs of the 47 camping water filters we list; not a test result.

Specifications

BrandKatadyn
Dimensions & fit
Item weight2.24 ounces
Item Dimensions L x W x H4.25 x 10 x 3 inches
Capacity & performance
Maximum Flow Rate2 liters per minute
Capacity1000 liters
Included components
Included ComponentsBeFree Filter Membrane
Warranty & support
Supported Water TDS Level Maximum PPM1000 ppm
Warranty DescriptionManufacturer Warranty
Other details
Purification MethodHollow Fiber Membrane
Container TypeBottle

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Frequently asked questions

What does the BeFree remove?

The title says bacteria, protozoa and sediment, and the item highlight adds microplastics and improved taste.

How long does the filter last?

The listing gives a capacity of 1000 liters.