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Rated 5 out of 5 by from Newest Hiking Staple Super simple + super light = new staple in my hiking kit Was looking for lightweight non-chemical water treatment for hiking in the states. After digging in on a few other products, I noticed this little gem in a review. Decided to give it a try as I had a few other hydrapak flasks with 43mm mouths and larger volume. Super happy with the performance on a few hikes so far. Easy to use and you don't notice it is there - it just works. Will be back to provide a more in depth review after a few months. Noticed there is a 3L bladder that is compatible, but would like to see other volumes available. It easily attached to my 750ML flasks, but I would like a 1L option.
Date published: 2016-06-19
Rated 5 out of 5 by from My go to! I purchased the BeFree initially for some short, local day hikes. My goal was to product test in a local atmosphere before utilizing on an adventure. Katadyn did not disappoint; the filter is great and tough and lasted on several 30+ mile treks. True to form, Katadyn has released an amazing bottle. Small enough to tuck in my waist band for a quick trail run and easy enough to fill and re-fill. I have purchased several more since the initial purchase for my family hiking, emergency etc. I have recommended this product to friends and they are impressed with the ease of use.
Date published: 2016-11-03
Rated 5 out of 5 by from The bomb This thing is awesome, I started out a little skeptical of the design but soon found out it works great for multiple reasons. I used this for my main filter on a five day canoe trip in the BWCA had no issues and found it extremely light and ready to pack in a pocket or in the bottom of a canoe. I thought it would be broken with the abuse I gave it, but just got back from a 7 day back country elk hunt and again used it as the main filter and again worked great. I am sold, this is the filter for me. Nice work Kaytadyn -Very handy -Light -Easy to use The bomb!!!!
Date published: 2016-11-02
Rated 5 out of 5 by from Super Convenient & Small I use this as backup filtration when backpacking and love the quick convenience. I don't like using my big pump filter because of the time and effort it takes, and this little bottle helps me get out the pump less often. When we come up on a stream or lake, I just dip the bottle in and get a quick and refreshing gulp of water without having to hold up the group by draining my hydration reservoir as quickly or taint the water and then have to wait with iodine or other chemicals. In my experience the filter has flowed very quickly and was easy to clean when it slowed.
Date published: 2016-11-03
Rated 5 out of 5 by from BeFree is an ultramarathon runner's perfect tool I have a Be Free water filter and plan on using it for my ultramarathons. I love how lightweight it is and it's just perfect since our last race we ran into problems and the lack of water was a major issue. This is just perfect! Thanks and keep up the great work Katadyn! Pro's: Extremely lightweight The hydrapak can be turned inside out for quick and easy drying versus some camelbak bladders which are very difficult to dry and mold Excellent flow rates Con's: Not a carbon filter If it were slightly smaller that would also be great but this works Overall, this thing rocks! I'd highly recommend it to others.
Date published: 2017-06-09
Rated 1 out of 5 by from Katadyn BeEnslaved - too good to be true indeed. I bought this halfway through my PCT hike to replace the Sawyer Squeeze. Initially, I was extremely happy! The flow was ridiculously fast. A 1l bottle option would have been perfect, but I was still so fast at filtering. I was very diligent in cleaning it, but noticed after about a week (of intermittent use) that the filter slowed considerably. Thorough cleaning did not rectify the issue. The flow rate after only 2 weeks slowed to essentially unusable. I was extremely disappointed with this as I think it's faulty to design a product that needs replacing so frequently. Avoid this at ALL COSTS. It is too good to be true.
Date published: 2016-10-29
Rated 5 out of 5 by from No need to carry 3 liters of water with me I bought this for fishing, fly fishing more specifically. When I am out on the stream or river I am walking and wading trying to cover as much of the stream or river as I cam. I use to carry a pack with a water bladder and as you know water is heavy. After watching a Youtube video of a Tankara fisherman with his little box of flies and a collapsable bottle I was hooked. Now I can take drink when ever I am thirsty. Being either in the river or stream means there is always a water source and I simply reach down fill the little container up and have drink. After it folds up and goes in one of my vest pockets. Love this thing.
Date published: 2017-05-28
Rated 5 out of 5 by from Just what I've been looking for I've been looking for an easy way to filter water on long mountain trail runs here in Bend, OR. This is perfect. I've now used it on about 7 long runs up to 28 miles without any issues. Quickly dip it in the stream and you're off within a few seconds. The water flow is great so no problems getting enough water. I usually have a hydration pack with me as well but barely sip from that as the fresh cold water from the local streams is more appealing. Given other peoples comments about quality issues, not sure I'd want to completely rely on this bottle, but I haven't had a single issue. If I were doing a multi day hike, I'd probably want two of these, just so I had a backup if something went wrong with one.
Date published: 2016-08-30
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Questions & Answers

Will a freeze destroy its filtering function?

Asked by: knowWhentoFold
Yes. According to Katadyn: "Do not use in freezing conditions (a frozen EZ-Clean Membrane could lead to microorganism bypass, resulting in illness)."
Answered by: Jimothy in ATL
Date published: 2018-02-10

To REI Service. Any info on differences between Katadyn BeFree & Sawyer Mini Water Filter? Pros & Cons of each would be helpful. I'd use it on backpacking trips in US (Sierras, PCT, etc.). I have used the Sawyer Mini on PCT. Thinking of trying Katadyn.

Asked by: Water Filter
Another consideration is how fast they filter. I've used both the Sawyer Squeeze filter and the Katadyn BeFree, and the BeFree is much faster (and the Squeeze is much faster than the Sawyer Mini). Furthermore, the bottle opening to the unfiltered water is smaller on the Squeeze so also it takes longer to fill the container with unfiltered water.
Answered by: Jeffett
Date published: 2017-08-10

Can this filter be attached to any other bottles or only this Katadyn bag? (e.g. the Sawyer Squeeze can be attached to Smart Water bottles)

Asked by: Bar2D2
It can also be attached to the Hydrapak Seeker 3L.
Answered by: Steggy
Date published: 2017-05-19

Can I purchase replacement bottles for the filter?  

Asked by: Geocin
The bottle is made by hydrapak, and is available in several sizes on the hydrapak website.
Answered by: TrailsNH
Date published: 2017-08-10

Does it filter out lead or other elements?

Asked by: scarlet biker
The BeFree Water Bottle and Filter Set does not remove lead from the water.
Answered by: REIservice
Date published: 2017-11-08

Will this system be also work well in Peru? I will be trekking Machu Picchu for 4 days and the tour company will be boiling our water. As a secondary measure I was planning to also bring a filtration system of my own because I have a sensitive stomach.

Asked by: ReJoyceJoyce
It should work fine for you in Peru. I've used Katadyn filters in Peru on previous trips and they've worked just fine. I just finished the Inca Trail last week and had no issues with the unfiltered boiled water (skipped the filter). Be advised that you'll likely consume 4-6 liters of water per day, so you may want to be able to swap the filter amongst a couple of bottles. For the first two days you can purchase water / gatorade from local vendors along the trail, so I'd recommend doing that. Helps the local community and you won't need to worry about getting sick. Last vendor is just prior to Dead Woman's Pass. 
Answered by: QuantumCat
Date published: 2017-11-08

Do this filter norovirus?

Asked by: lau33
This water filtration system filters out protozoa and bacteria. Norovirus is a viral pathogen so it will not be filtered out.
Answered by: REIservice
Date published: 2017-11-08

Is the lower element of the filter meant to detach? Mine was knocked in my pack, exposing a gap that easily would have let unfiltered water pass through to the nozzle. Is katydyn planning a fix to this flaw? Is the filter usable if it's realigned?

Asked by: CABayHiker
We recommend taking the bottle back to any REI store for an inspection or contact Katadyn directly for troubleshooting assistance.
Answered by: REIservice
Date published: 2017-03-28
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