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Katadyn Gravity BeFree 3.0L Microfilter



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.

  • 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

protozoa and bacteria
EZ-Clean Membrane (hollow fiber)
Pore Size
0.1 micron
Cartridge Life
2 liters/min
Field Cleanable
filter, 3.0L reservoir, quick-release hose kit
15.2 x 9.1in
Claimed Weight
Recommended Use
backpacking, hiking
Manufacturer Warranty
1 year

Tech Specs

What do you think about this product?


>Rating: 5

My new best friend in the backcountry!

I've used it once or twice and have initial impressions

I am so impressed with this filter. It quite literally works like a faucet. Saves you time to enjoy your friends and the scenery. Not complicated. Lightweight. Easy to clean. I will never go back to a pump after experiencing this. It is my new go to birthday gift for friends and family. My perfectionist complaints would be the handle, it's a tiny bit uncomfortable, but the sling fixes that mostly. The other is the material of the bag could in theory get a hole, but you trade that for its lightweight feature. Just be relatively careful with it. Don't smack it on a sharp rock or get it impaled by a branch haha.

>Rating: 5

A must have!

I've used it once or twice and have initial impressions

I used this for a backpacking trip in Escalante and it kept 6 of us hydrated for 3 days. Better than lugging a ton of water!

>Rating: 5

Worked Great!

I've used it once or twice and have initial impressions

Bought this to take on a backpacking trip into the Wind Rivers and it was amazing to have! Anytime we stopped by a lake or stream we could restock our group of 6's water supply in less than 15 minutes. This made us all a lot more comfortable with not carrying as much water while we were hiking to reduce weight. Its a little difficult to fill up in a lake but with a little practice it becomes easier.

>Rating: 5

The BeFree Just got Better!

I've put it through the wringer

I love my BeFree and I'm really psyched to have it in a Gravity package now. I can now use one filter for filtering on the go or around camp. Pair this with a HydraPak Seeker for a durable squeeze pump/extra storage.