Gravity BeFree 3.0L Microfilter
Size:
Quantity
Only 1 In stock
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.
Details
- 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
- Purifying Element
- hollow fiber
- Eliminates
- protozoa and bacteria
- Filter
- EZ-Clean Membrane (hollow fiber)
- Pore Size
- 0.1 micron
- Cartridge Life
- 1000L
- Action
- gravity
- Volume
- 3L
- Flow
- 2 liters/min
- Field Cleanable
- yes
- Includes
- filter, 3.0L reservoir, quick-release hose kit
- Dimensions
- 15.2 x 9.1in
- Claimed Weight
- 3.5oz
- Manufacturer Warranty
- 1 year
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 119 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
Here's what customers have to say
The water filter is praised for its ease of use, fast flow rate, and lightweight, compact design. Users report it effectively filters water for backpacking and camping, even in cold temperatures. While a few experienced issues with clogging, most were satisfied with its overall performance as a reliable and convenient filtration system.
AI-generated from the text of customer reviews.
View
Selecting an option will reload the available reviews on the pageOctober 2, 2025
Light and easy filter
- Familiarity:
- I've used it several times
Works great, so much easier and lighter than our old pump filter
September 28, 2025
Works great…
This size was on flash sale so the price was enticing enough to give it a try. For backpacking - which is what I purchased this one for - I’d probably get one a little smaller. On the plus side since it holds a lot I can fill it at the water source, bring it back to camp, hang it and use it for quite awhile. It works pretty well as a gravity filter, too. Closing the cap while it’s hanging squirts water on you - be careful! Opening is pretty small so having a cup to fill t at the source is helpful. Super easy to use…

Originally reviewed on ExpertVoice.com
September 25, 2025
Basically like a platypus gravity filter but BeFree. I like the ease and convenience of this set up. it makes filtering lots of water a quick process.

Originally reviewed on ExpertVoice.com
September 23, 2025
Easy to use. Size is great for 2 people camping together- you can get 2 cups of coffee and breakfast all from one bag which is a big convenience. Easy to clean and holding up well a year later!

Originally reviewed on ExpertVoice.com
September 3, 2025
It works
Great for campsites where you can let gravity take its time to work

Originally reviewed on ExpertVoice.com
September 2, 2025
I use this on every camping trip! It's so easy to use and packs really small. I love being able to hang and drain, which doesn't take long at all. It's generally fast enough that I can just hold it up long enough.

Originally reviewed on ExpertVoice.com
August 8, 2025
It wouldn't work at one point...
I really wanted to give this more stars, but since I had issues with it on my last backpacking trip, I couldn't. I was in the Grand Canyon, and it just would not GO...at all. Not sure what I was doing wrong. So, I packed it all back up and decided to figure it out later at my campsite. It suddenly started working. I'll need to look up some trouble-shooting tips. Pros: It's light and can filter 3 L of water at a time. Cons: Sometimes doesn't work. Filtering is very slow. UPDATE: I still have issues with this filter. I found that if I soak it in distilled water after every trip, it helps some. The first filtering is always the most frustrating.

Originally reviewed on ExpertVoice.com
March 7, 2025
Love it - works easily - great size for 3-4 people
Used it backpacking in CO last summer. really convenient. Nice to drop weight by no longer carrying a pump.

Originally reviewed on ExpertVoice.com
January 15, 2025
Ideal lightweight clear water processer
I'm quite attached to my multi-branded frankenstein of a gravity filter, with its 5L roll-top resevoir, inline filter, custom hose length and water bladder quick connector. Jealousy struck me, however, when a friend whipped out this setup. It's about as bare bones as you can get and still process and/or transport a solid volume. I like the handle for hanging to drip into a bottle. It's easy to drink out of too. Like other similar gravity filters it plugs easily with silty or very dirty water. The bladder is prone to pinhole leaks and leakage around the seals. It is choice for saving weight and treating clear water when boiling or chemical treatment isn't ideal. I would like a way to connect it to a bottle or reservoir, maybe with a hose, but admit that I might be missing the point.

Originally reviewed on ExpertVoice.com
November 24, 2024
Best fit for my needs
- Familiarity:
- I've used it once or twice and have initial impressions
- Size Bought:
- 3L
Only used once in 50 degrees. Stream was clean, running fast and filled bladder in 7 seconds. Flow rate was perfect for my needs. Perfect holding points especially at intake side for submerging. First befree so will see how long it lasts with a good flow rate. Ill likely carry an extra filter if out solo. Weight is perfect for the benefit. Last thing i want to do is squeeze a bag for my water after a long hike and setting up camp. Now i know why i see a lot of gravity filters hanging. The holding strap was a bit much for my needs unless someone uses it as a shoulder carrying strap. I changed that up.
Do you have a question about this product?
Related Categories
Related Searches
Katadyn Gravity BeFree 3.0L Microfilter reviewBest portable water filter for hikingLightweight microfilter for camping tripsHow to use Katadyn Gravity BeFreeTop features of Katadyn Gravity BeFree 3.0LGravity-fed water filtration systemDurable hollow fiber water filterField cleanable water filter for backpackingKatadyn Gravity BeFree specificationsEliminate bacteria and protozoa with easeEfficient water filtration for outdoor adventuresUser-friendly water filter for all agesLearn more about Gravity BeFree 3.0L Microfilter