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Katadyn BeFree Softflask Filter

Katadyn BeFree Softflask Filter
Purchase Katadyn BeFree Softflask Filter

  • Katadyn BeFree Softflask Filter

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The Katadyn BeFree soft flask filter is an incredibly light and compact water filtration system for fast and light activities, where drinking from streams is an option but would have been too risky without a filter. The filter itself weights just 63g and screws onto the included soft flask. When empty the whole unit rolls up and will fit in a trouser or running vest pocket.

The Katadyn BeFree system uses Katadyn's EZ-Clean membrane which has a 0.1 micron hollow fiber filter which eliminates bacteria, protozoa, algae, spores and sediments. Though more suited to filtering clear water it still works well for cloudy water and is easy to clean in the field, which may be necessary if the water is cloudy. It gives a good output of around 2 litres per minute and is very easy to clean by simply shaking or swishing in water. No back flushing or tools are necessary.

As it is a Microfilter it does not remove all water borne viruses. For this you usually use a chemical additive to kill the viruses.

Katadyn BeFree Softflask Filter Features

  • Cleanable 0.1 micron hollow fiber filter
  • Roll up soft flask
  • Easy to clean in the field
  • Small and lightweight
  • Lifetime of up to 1000L filtered.
63g (filter only)


5/5 Stars out of 2 Reviews
Katadyn BeFree Softflask Filter
Iain | September 20th, 2023
Seems great. The cap fits onto the Salomon soft flask bottles, which was my original intended use, but in the end I've found I carry the whole BeFree Softflask in my pack and then fill up the Salomon ones, and on hot days this has meant I've got a spare ~600ml of water carrying capacity. I don't love drinking directly from it. Does it work? Well I've not had explosive diarrhea after drinking water that I filtered with it, but I've no idea if I would have had I not used it... it's a light weight and convenient insurance policy in that front!
Katadyn BeFree Softflask Filter Review
Rob Stanley | April 9th, 2021
Great for walking and wild camping in the UK hills. I have always used purification tablets but this filter is more convenient and the water taste is much better. The small bottle size means I have to refill regularly as I pass streams but it reduces the weight I am carrying. At camp the filter connects to my 3 litre Hydrapak collapsible bottle. Very happy with it.