Last Updated on 2 December 2025 by Cycloscope
10 best camping water filters & purifiers for bikepacking, cycle touring, and hiking
The fastest, ultralight, portable, and most compact filtration systems: UV, bottles, ceramic pumps
We’ve all been there: “Can you drink the water?” And well nothing breaks your touring plans like a few days hugging a toilet or even worse a trip to the local hospital.
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So if you’re planning a bikepacking trip where you won’t see a tap for days, or hitting Asia, Africa, or Latin America with your backpack and camping tent, the best portable water filter for your needs is a critical piece of equipment.
The water filtration systems industry has developed massively in the last few years, and there is now a bewildering array of considerations to make and styles to choose from. So we’ve done the work to make sense of it all for you.
As a backpacker or bicycle tourist, you can find yourself purifying everything from your Tanzanian hotel bathroom water to a muddy Indian Canal.
The 10 Best Travel Water Filters and Purifiers
- MSR Guardian Purifier Water Filter
- MSR MiniWorks EX Purifier System
- Katadyn Hiker Pro
- Sawyer Squeeze
- Sawyer 1 Gallon Gravity System
- Platypus Quickdraw Ultralight 1 Liter
- SteriPEN Adventurer Opti
- Grayl Geopress
- Katadyn BeFree
Water Filters VS Water Purifiers
The filter itself does most of the work and removes most, but unfortunately not all, microscopic life from your water.
The basic fact is that there are big microorganisms like Amoeba and Bacteria that are relatively easy to filter out, but viruses are just so small that it’s a technological challenge to filter them out; not even the best camping water filter will catch them.
The good news is that 99% of the bad stuff in water is amoeba and bacteria, so usually that’s enough.
If you do want to stop viruses, then you need a purifier. Purifiers come in many forms, chemical, UV light, and super-fine filters being the most common, each with its pros and cons.
All the microscopic stuff you’re cleaning out of your water is slowly clogging the pores in your filter, which means filtration slows down and becomes more complicated. Some filters try to send it back out the way it came, with a backflush. These can be either built-in or come as a syringe, an extra item to carry.
3 Great Portable Pump Water Filters
Our first water filter was a pump. You pump water through a filter and get as much water as you want when you want it. They’re usually a bit bulkier and a bit more effort, but give you maximum control. Pumps also, well, suck.
We don’t mean all that hard work pumping, or actually, maybe we do, but they also suck up the water from anywhere, direct from the stream, that bucket, or your spare Coke bottle. This frees you from the need to have just the right bag.
1. MSR Guardian Purifier Water Filter
- Filters 1 liter in about 40 seconds
- Weighs about 0.5 kg
The MSR Guardian is the ultimate Pump, but it doesn’t come cheap. It’s sturdy, self-cleaning, and most importantl,y it purifies. If you want to weep at the cash register once and then reliably have clean water month after month, year after year, no matter what, this is worth considering.
3. MSR MiniWorks EX Purifier System
So you want a pump, but you don’t want to pay $350 for the Guardian. The mini works do the basic job of cleaning water under most circumstances but it’s not going to purify.
Instead, to earn its “purifier” label, it comes with chlorine tablets, which means you’ll need to keep buying them. It’s perfect when you mostly don’t need to purify, then adopt a two-part solution: tablets or UV for the rare circumstances you do.
4. Katadyn Hiker Pro
- Filters 1 liter in about 50 seconds
- Weighs about 0.4 kg
Katadyn is MSR’s rival, and the Hiker Pro is a decent budget option for a bikepacking water filter.
It has a reputation for being great for filtering clear water, but lacking a back flush system, it can clog up on murky water. It doesn’t purify.
Squeeze Filtration System
Squeeze is the new pump, basically, instead of pumping, you fill an input bag and squeeze the bag, and out comes clean water, simple. The downside isthat high pressure in plastic bags is a disaster waiting to happen.
5. Sawyer Squeeze
- Filters 1 L in about 40 seconds
- Weighs about 0.6 kg, including a back-flush syringe.
The Sawyer squeeze is the classic squeeze device. It does what it does well, and reliably on long trips, but it doesn’t purify; it is rated down to 0.1 microns, which is suitable for a non-purifying device.
The device itself has a reputation as being solid and reliable; the biggest problem is the input plastic bags, the things you physically squeeze, and they’re what’s likely to break. Then your device will be rendered useless.
At least they’re light, bring spares. It comes with a special syringe for back-flushing the device, and on more extended tours, you should carry it.
2 Portable Gravity Water Filters
Gravity filters eliminate the hard pumping and squeezing; instead, water flows from a top bag through the filter into a bottom suitcase.
They’re great for setting up at your campsite and just leaving them to do their own thing, but because they take more time, they’re less suitable for that quick stop by a stream to refill your water bottles.
6. Sawyer 1 Gallon Gravity System
- Filters 1 liter in about 2 minutes
- Weighs about 0.12 kg
If you want a gravity system that will fill your bottles at your campsite and can double as a squeeze system for a quick “give me my water now” refill on the road, then this is your ideal product.
Sawyer finally realized that other companies were providing adaptors to turn these squeeze filters into gravity filters, and so they produced their own. You geta 1 Gallon (3.78 L) water bladder to hang from a tree or your handlebars, with the hose at the bottom that connects to a variation of the standard Sawyer Squeeze Mini with an output hose to whatever you’re trying to fill.
Like any gravity system, you’re dependent on a gravity-style bladder with an exit hose at the bottom and they can break the road, you probably should bring spares but they’re light.
They claim to filter to 0.1 micron, which is on the line for viruses, but they don’t promise virus removal. You might want to carry tables or a UV pen if you’re expecting some nasty water.
7. Platypus Quickdraw Ultralight 1 Liter
The Platypus GravityWorks filtration system is arguably the top choice for backpacking filters. It’s compact, relatively lightweight, and offers excellent filtration with a reasonable flow rate of 3 L/min. A key advantage is the ease of cleaning and checking the filter, which adds to its reliability during outdoor adventures.
While some filters promise virus removal but clog easily in rugged environments or are cheaper options that often leak, the GravityWorks system excels in both versatility and dependability. After testing the one-liter version, we found it remarkably efficient and user-friendly.
It effectively removes bacteria and protozoa, which are prevalent in water sources, including Giardia, cholera (I wish we had it in Africa), E. coli, and Salmonella.
UV Water Purifiers
UV light kills bacteria and viruses. Eventually, the idea behind portable water purifiers is to stick a UV light in your water and wait about an hour, and everything should be dead.
Pros are they purify without chemicals, Cons are the time, no guarantee of making it to the deepest darkest corners of your water bladder, and it adds another device to your already crowded device charging list.
8. SteriPEN Adventurer Opti
- Filters 1 L in about 90 seconds
- Weighs about 0.2 kg
A UV product like SteriPen should kill all bacteria in your water, but it won’t clean dirty water. It’s great for bottles and smaller bladders, but it may not purify everything in the biggest water bladders, and it takes time.
A full charge (4-6 hours) should last about 30–50 L of water. One bulb is supposed to last about 8000 L. So if you need to purify and don’t want to put chemicals in your drinking water, and you think you’ll have reliable electricity, then it’s a good option.
For those really bikepacking and camping in the remotest locations, it could also be part of a strategy where you filter with something else most of the time, and you want an occasional full purification option for the worst water.
Bikepacking Bottle Water Filters
Bottles are popular with cyclists but not necessarily the first choice for touring. But if you really want a bottle or something multi-use for traveling, hiking, and cycling, there are some interesting options.
They’re quick; you drink straight from the bottle using the energy of sucking or squeezing. But they’re only for drinking and are one per person.
8. Grayl Geopress
- Filters 1 L in about 30 seconds
- Weighs about 0.5 kg
The Grayl Geopress has some serious pros and cons. First, it purifies. In fact, it has the highest-quality purification of any item on the list and also successfully removes heavy metals from nasty water.
That makes it an option if you really care about your water quality, particularly when you trust your night water source but want to purify road water, or when you want a two-device filter and purification strategy.
The cons are that it’s a bit heavy, the cartridges are rated for about 350 uses of the 750 ml bottle (maybe 200 liters), and they cost about $30 each. Long-term, that adds up, and Grayl is a new startup, so there’s no guarantee of future cartridge replacements.
Still one of our favorite portable water purification and filtration systems, all in one!
9. Katadyn BeFree
- Pretty much instant
- Weighs about 50 grams
The BeFree is a reliable, lightweight bottle that filters but doesn’t purify. The filter is essentially a super bottle top that screws onto a bottle, then squeezes and drinks.
And it’s standard enough that when not if, the original bottle breaks, you can switch to another regular bottle. It should last about 1000 liters.
An ideal bicycle touring filter thanks to its minimal size and weight.
Frequently Asked Questions about Camping Water Filters and Purifiers
Do water filters purify water?
No. Water filters remove microorganisms like amoebae and Bacteria. To get water safe from viruses, you need a water purifier (UV or chemical). Boiling water for a few minutes also kills most viruses.
Do UV water purifiers really work?
UV purification is a safe way to purify water without chemicals. For UV light to kill 99.9% of pathogens, though, it takes a certain amount of time, which depends on the size of the filter and the amount of water. So, constantly give your portable UV purifier enough time.