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We tested 20 backpacking water filters and treatment systems from Platypus, Sawyer, Katadyn, LifeStraw, and others to find the best option for your backcountry adventures
Credit: Trish Matheny
By Trish Matheny ⋅ Review Editor ⋅ Updated October 12, 2026
Clean water: You need it, and we want to ensure you have it, wherever you go. Bacteria, viruses, protozoa, microplastics, and more can be found in your drinking water if you're not careful.
From day hikes, to trail runs, or a backpacking party of one, the LifeStraw Peak Squeeze is the best filter for personal use. This fast, lightweight filtration system produces some of the highest-quality water in our testing, with minimal setup and maintenance. And if you're using it just for yourself, you don't even need to bring an extra bottle to drink from.
If you're out with a group of friends, you will need something with a little more capacity. The Platypus GravityWorks is a great filter with options for a 4L or 6L capacity. Both sizes have a relatively fast flow rate and a setup that lets gravity do all the work when filtering larger quantities of water.
We purchased and tested each filter on treks in Peru, expeditions across the USA and South America, and even thru-hiked Iceland. We evaluated each filter's portability, the maintenance required to keep it operational in the field, and critical aspects of the model's design, including the types of contaminants it removes from water and the time it takes to process one liter of potable water.
Editor's Note: We updated this review on September 24, 2026, after a complete overhaul of our extensive review. We retested 12 previous models, updated our testing perspectives with current results from the field, and added results from third-party lab tests on water quality.
Quick Picks
Here's a quick list of our favorite Backpacking Water Treatment recommendations.
Are you going out for a long trail day in the hills? The LifeStraw Peak Squeeze is a personal-sized model featuring a high-flow microfilter that fits in a packable soft bottle. Scoop water on the go, screw the cap on, and it will filter as you drink, fueled by a soft squeeze and your guzzling force. Or use the 0.2-micron hollow-core membrane filter like a straw to drink straight from shallow sources. In the field, the microfilter and collapsible bottle roll up to the size of your palm and pack easily in the pouch of a running vest or the hip pocket of your backpack. While we sometimes see durability complaints with soft bottle systems, tester Trish Matheny was pleasantly surprised, noting, “The Peak Squeeze corrects many of the issues I've had with other collapsible bottles.”
Regular maintenance is required to reach and maintain optimal flow. This makes sense, given the small size of the microfilter, and a syringe assist is necessary to remove extra particles from the hollow fibers if you're collecting from silty water sources. However, this is expected maintenance for most squeeze or pump filters. If a zero-maintenance option is more your thing and you are less concerned about silty particles in your water, the Aquamira Water Treatment Drops may work for you. The Peak Squeeze comes in .65L, and 1L sizes, which makes it more practical for just one or two people. For group trips, we recommend a gravity filter like the Platypus GravityWorks below.
The Peak Squeeze is our favorite water filter for personal use thanks to a durable design, consistent flow, and easy to use design. Credit: Trish Matheny
The Platypus GravityWorks is our favorite gravity-fed backpacking water to set up once we reach basecamp. It is fast, portable, and easy to use. Setup is effortless, and our testers love its 4-liter potable water capacity, finding it useful for solo trips or small groups. The kit comes equipped with two durable 4-liter bags (one labeled “clean” and one labeled "dirty"), and the bags can be converted into a solar shower or handwashing station to complete your base camp experience. “It's so nice to simply fill the dirty bag with water, hang it in a tree, walk away, and return to enjoy freshly filtered water in a matter of minutes,” one of our testers mentions. The easy setup and effortless, gravity-fed design are a significant draw for many users: no pumping, no squeezing, and minimal waiting required. At 11.5 ounces, it's heavier, but we think it's worth carrying on most trips.
There's no doubt that the GravityWorks filter is one of the best for small groups; however, this filter does not treat viruses. Most of the physical filters we tested don't. If that gives you cause for concern, you may be better off with a model like the MSR Guardian Purifier which has a filter with a smaller pore size that can catch these tiny pathogens. Previous versions of the GravityWorks had us concerned about the bag's durability, but the current model features beefy webbing and plastic closures that make hanging a breeze whether on a nearby tree branch or boulder (although the thick, ziplock-style closures can be hard to seal, especially with cold fingers). Yet, for a durable and easy-to-maintain gravity filter with a high flow rate, the Platypus GravityWorks is our top recommendation for friends and readers alike.
The GravityWorks is a completely passive, gravity fed, filtration system that is effective at eliminating bacteria, protozoa, and particulates from your drinking water. Credit: Trish Matheny
Some backflushing often required to maintain flow rate
SPECIFICATIONS
Measured Weight (entire kit)
7.9 oz
Reservoir Size
1L, 2L
Type of Filter/Purifier
Squeeze, in-line, on-the-go
Effective Against Protozoa
Yes
Effective Against Bacteria
Yes
If you are backpacking in a small group, the Sawyer Squeeze is the Goldilocks of water filters. A heavier and more expensive gravity system is better for large groups. A filter bottle is better for hiking and solo backpacking. The Squeeze is just right for smaller groups. The great value comes not only from the relatively low upfront cost, but the high number of uses you get between filter changes. Sawyer offers a “lifetime guarantee” on the filter (not the bag or other parts). So, as long as Sawyer honors that, you will never have to replace this filter. Of the multiple Sawyer Squeeze systems, this one offers the fastest flow rate, filtering one liter of water in about 50 seconds in our tests. It's also very packable. You can use it as a squeeze filter with accompanying bags or in line with a hydration bladder. You can even attach it to the top of a compatible water bottle or drink directly from puddles with its complementary straw. Only a few other contenders offer this level of versatility and portability.
There are no significant drawbacks to the Squeeze, but it faces considerable competition. Some filter bottles are lighter and less expensive for day users and solo backpackers. We recommend packing the syringe for cleaning the Sawyer Squeeze to ensure an efficient flow rate; otherwise, the filter will clog, and the flow rate will decrease after just a few filtrations. Drawbacks aside, the Sawyer Squeeze is an excellent lightweight option for day trips and personal use, and its 100,000 gallon filter life should keep you going for a long time without needing a replacement.
Long incubation time to eliminate Cryptosporidium cysts
Doesn't remove particulates
Minor chemical taste
SPECIFICATIONS
Measured Weight (entire kit)
3.0 oz
Reservoir Size
N/A
Type of Filter/Purifier
Chemical treatment
Effective Against Protozoa
Yes
Effective Against Bacteria
Yes
If you've got time to wait for your potable water and don't want to carry a heavy or bulky filter system, the Aquamira Water Treatment Drops are a lightweight, inexpensive travel system used by many thru-hikers. Treatment is simple: activate the substances, drop them into water, and let them sit. When given ample time, it kills the most pathogens of all the chemical treatment systems we tested, including cryptosporidium cysts, a notable ability not shared by other chemical treatments. Plus, they are inexpensive and incredibly packable; these drops can be used anywhere in the world. There is no need for field maintenance, and the drops inherently never clog. Lead tester Amber King says, “The worst thing I could imagine is that I might accidentally knock over a bottle while treating my water.” So, as long as you're careful where you place the open bottles, we think you'll be fine.
While the manufacturer advertises a 15-minute treatment time for the Aquamira Drops, in reality, you have to wait much longer (four hours is recommended) to eliminate hard-shelled cryptosporidium cysts. Our tester says, “I just have to remind myself to leave time to wait for sterilization.” Chemical treatment doesn't filter out any particulates, so we recommend carrying a handkerchief to remove solids. Lastly, these drops have a low upfront cost and offer great value for a couple of trips into the backcountry, but they run out and need to be repurchased, which drives up the price over time. If you're seeking longer-term value, consider the Sawyer Squeeze, which has a filter life of 100,000 gallons. However, we don't consider any of this to be a dealbreaker; the Aquamira drops are definitely our favorite chemical treatment. If you're not keen on the slightly sterile flavor, mint often grows in the hills in many locations, like the Grand Tetons, and can help mask it while keeping you hydrated.
Our team is impressed by the new and improved Katadyn BeFree AC thanks to a more durable Hydrapak soft bottle and an option to drop a charcoal insert between the mouth piece and filter for even better flavor on-the-go. This is the lightest of all the collapsible soft bottle filters that we tested, and it is built to move. The durable cap and flip top include a cover to keep the mouthpiece clean, while the larger mouth opening helps increase flow rate whether you're squeezing the filter into another bottle or chugging to stay hydrated on your trail run. We love how small it packs down, whether you prefer to just carry it in your hand, clip it to your pack, or toss inside a backpacking pack, it's so small, you won't second guess whether or not you want to bring it along.
For those seeking the ultimate in value from their next collapsible soft bottle filtration system, the BeFree's 264-gallon lifespan may be a little disappointing. And while the design has greatly improved in the current iteration, it isn't as durable as other heavier and bulkier pump designs that we tested, or even other soft bottles like the LifeStraw Peak Squeeze, which is more durable and costs less. It is similar to other ultralight gear in your gear closet: you utilize it for ultralight missions when every ounce matters, and choose a different option for extended trips in bigger groups that are gonna really test the limits of the lightweight design. We also find the squeeze bottle better suited to personal use. Although the filter lifespan is limited and it's not the most durable filter in our review, the BeFree remains the best for ultralight missions.
The BeFree is one of the lightest and most packable filters that we've tested. We love using it on big adventures when you're counting every ounce of weight in your kit. Credit: Trish Matheny
The MSR Guardian Purifier stands out for its exceptional ability among hand pumps on the market to remove water-borne viruses and other pathogens. The filter's 0.02-micron pore size is impressively tiny compared to the standard size of .1-.2 microns in other filters. It's built to last; it's tough, and it's strong. We've owned one for over seven years, and it's performed well during international travel and hiking in the backcountry. Tester Amber King went the extra mile: “I also drop-tested the filter from six feet over concrete, just to double-check.” Its flow rate is exceptional for a pump filter (about 30 seconds for one liter), while the auto-backflush system makes it functional even in the sludgiest of stagnant or turbid water holes. It's also the only system that performed remarkably well in these conditions. If you encounter water muddied with sediment, this is the filter for the job.
Our testers found the Guardian to be quite remarkable, but the initial investment is tremendous, and to be frank, most people won't want to invest that kind of money. If you do day hikes and overnighters primarily in North America, you probably don't need this Cadillac of hand pumps; a normal pump like the Katadyn Hiker Pro will work just fine. In our latest round of testing, we also experienced a durability concern when the piston nut on the filter broke after only a few days of use. We immediately contacted Cascade Designs, and they shipped a replacement part. We received it a week later, and it took us about 5 minutes total to replace the part. Luckily, this happened as we were performing field tests close to home, but it's a great reminder to bring backup filtration; options like the Aquamira Water Treatment Drops could make or break your trip.
Effective Against: Particulates, bacteria, protozoa | Weight: 16.2 oz
PROS
Easy setup
Large volume reservoir
Packable
Has a sediment catcher
CONS
Slower flow rate
Requires regular maintenance
SPECIFICATIONS
Measured Weight (entire kit)
16.2 oz
Reservoir Size
10L
Type of Filter/Purifier
Gravity filter
Effective Against Protozoa
Yes
Effective Against Bacteria
Yes
The MSR AutoFlow XL is a gravity backpacking water filter designed for large groups and base camps. Tester Amber King mentions that one of her favorite perks is the weight-to-water capacity ratio. While it doesn't compare to single-user models like the LifeStraw Peak Squeeze, Amber says, “I love how I can easily pack it into cracks and crevices to keep the weight of my bag down.” Its large capacity can hold up to 10 liters of water, and its adaptable design fits various storage vessels, again making it a perfect option for group trips. Out of all the models tested, this is our favorite for filtering large amounts of water due to its minimal setup and the ability to leave it unattended while filtering. It also doubles as a handwash station or even a shower during the warmer seasons.
Even though we love this system, it has the slowest flow rate of all the gravity filters we tested. We found that consistent backflushes are necessary, particularly when dealing with turbid water. If you're looking for a similar gravity filter with a quicker treatment time, the Platypus GravityWorks might be more your speed. Or, if you want to check out a more affordable gravity filter, consider the LifeStraw Peak 3L. Additionally, to utilize the full capacity of the MSR AutoFlow XL, you may find that your site selection is limited by the availability of strong anchors from which to hang it. Bottom line: This filter is a good option for those requiring a gravity filter that can handle large quantities of water with minimal effort.
The Grayl Geopress quickly became one of our most used and favorite bottle press purification systems. Basic functions, such as collecting water, filtering, and drinking immediately from the bottle, it does well. More importantly, the Geopress removes the most disgusting water contaminants that you might find. It's said to remove not only bacteria and protozoa, but also viruses, heavy metals, plastics, pesticides, and more. Our water came out clear when we tested it in a heavily metal-polluted river in Ouray, CO. We believe no other system could purify this water as effectively; most still leave some detectable smell or discoloration behind. The bottle also proved incredibly durable and met our needs while traveling internationally. Save yourself from buying tons of disposable water bottles during travel and get the Grayl Geopress instead.
Although we appreciate the thorough purification this bottle provides, it is not our first choice for lightweight backcountry travel due to its bulky and heavy design. The Grayl Geopress's cartridge life is minimal, refills are costly, and it tackles contaminants you don't often run into in most North American backcountry. If you want something less bulky and more affordable, consider options like the LifeStraw Peak Straw or the LifeStraw Peak Squeeze. However, for traveling abroad, this system provides peace of mind when collecting water from taps or other potentially polluted sources, along with clean-tasting and purified water during long days in international airports.
The Geopress is our favorite bottle filtration system that effectively eliminates bacteria and protozoa while purifying your water from viruses and chemicals. The flavor is excellent and the design features a user-friendly press action. Credit: Trish Matheny
Product Comparison Table
Gear testing is a tough job but somebody's gotta do it. Our latest testing season took us to Cochamó Valley in Southern Chile where the ample water supply and adventurous rock climbing provided ample testing opportunities in unique locations. Credit: Trish Matheny
How We Tested
To test each product in this review, we take to the trails. We run, hike, climb, and bike hundreds of remote miles with filters in tow, guzzling gallons of water filtered and purified from trailside sources. Using a systematic test plan, we assess each system's anatomy, dissect the pros and cons, and evaluate whether a system is reliable enough to earn our favor. Additionally, each product goes through third-party lab testing with SGS labs so we can get a professional, scientific take on water quality and compare every filter with the manufacturer's claims. To learn more about our collaborative process, check out our How We Test Article for a deep dive on our method. Ultimately, our recommendations are based on experience in the field, home-based use, and scientific analysis that compares the performance of each product to make sure you stay safe and healthy in the backcountry.
Our comprehensive testing spanned six testing metrics:
Water Quality (30% overall score weighting)
Ease of Use (20% weighting)
Durability and Maintenance (20% weighting)
Treatment Time (15% weighting)
Weight and Packability (15% weighting)
Why Trust GearLab
Amber King and Trish Matheny are seasoned gear testers (with over 20 years of collective experience) who love to explore in the backcountry. Amber works in outdoor education and is an avid ultrarunner and rock climber. She spend lots of time in the woods, backpacking along trails and exploring remote locations. Trish is a member of the Yosemite Search and Rescue Team, where she has ample opportunities to test water filters in the backcountry of the ever-popular Yosemite National Park. During her off-seasons, she loves to travel internationally, often splitting her time between big multi-pitch granite adventures in South America or while covering ultra-distances in the High Sierra.
Our team of testers has put each of these water filters through the wringer so that we can provide you with the best recommendations based on your specific needs.
Analysis and Test Results
With a focus on backcountry water filters, we selected a diverse range of options. If you are not sure what option is best for you, read our article [How to Select a Backpacking Water Filter and Treatment System] or check out our Buying Advice section at the bottom of this article. While it may be challenging to compare different categories of water treatment products (for example, chemical treatment versus a hand pump), the metrics used to evaluate each filter provide helpful insights, pros and cons, as well as best uses that help identify which products excel in one area over another.
Worse Value
Better Value
What's the Best Value?
We have numerous value recommendations tailored to various use cases. Keep in mind that the replacement filters are a big part of the cost in the long run.
For personal use, the LifeStraw Peak Squeeze, our Editor's Choice, is a great value. While you only get 500 gallons per filter, that is more than enough for the casual user, and it costs less than comparable options.
If you are filtering a higher volume, the Sawyer Squeeze is one of our best values. Yes, the upfront cost is not cheap, but you get 100,000 gallons between filters. A lifetime of use for most people.
For groups, the best deal is the LifeStraw Peak Gravity 3L. It is a fraction of the cost of the higher-end bags and totally adequate if you don't mind the limited storage capacity.
While purification tablets and liquids like the Aquamira Water Treatment Drops have a low upfront cost, they offer less value per liter over time as they need to be replaced every 30 liters or so. They are the best value for occasional backup use.
When not clogged, the Waterdrop is fast, efficient and fun to use. We just wish all the components were more durable. Credit: Chris McNamara
Water Quality
Before taking each filter out into the field for use, we take a close look at the manufacturer's claims for what each design is created to remove. Then we sought out a variety of water sources from shallow puddles to smelly swamps, fresh and flowing water sources all the way to contaminated streams, just to get an idea of what each filter was capable of. We also commissioned an independent testing facility SGS Labs to perform water quality testing for every product in our lineup. This allowed us to assess whether or not each filter lived up to the manufacturer's claims and, if so, the exact percentage of bacteria, viruses, and beads (representing Giardia and Cryptosporidium cysts) that they removed. The filters that remove everything, including viruses, heavy metals, and pesticides, triumphed in this category.
Throughout this section, you'll notice that we're referring to our custom third-party testing with the SGS lab. For reference, here is a chart that clearly lists the performance of each individual water filter in our award-winning lineup. The chart shows the percentage removed or eliminated within a specific contaminant category, but please note that the protozoa, or “Beads,” category applies only to filters that physically remove the contaminant.
Here are the results of contaminants removed during our custom third party testing provided by SGS. Credit: Trish Matheny
But first a note on water filters vs water purifiers. Filters physically remove particles down to .1 or .2 microns, which includes harmful bacteria and protozoa, as well as less dangerous but still unpleasant silt and sediment. Purifiers either remove or kill harmful viruses in addition to bacteria and protozoa. Some do this by means of physical removal, using filters with smaller pore sizes down to .02 microns. Others use chemicals to kill all living organisms in the water. In most of North America, a filter is all you need. If you venture into more polluted areas, or locations with poorly developed sanitation infrastructure, you'll want to bring a water purifier to keep your belly happy. The best filtration systems also remove chemicals, heavy metals, and odors using activated carbon embedded in the core of the media.
Hollow fiber filters are common and used to eliminate harmful bacteria and protozoa, however, most are unable to remove viruses. Credit: Trish Matheny
Water purifiers are essential if you're traveling to a country with a less developed sanitation system, or living in highly polluted areas. The MSR Guardian is a tried-and-tested hand pump that can remove particulates, protozoa, bacteria, and viruses from your drinking water. It is also designed to remove heavy metals and chemicals, and eliminates odors and discoloration from your water source, providing clean water from a variety of locations.
Pre-filters like the one pictured here on the MSR Guardian Purifier are perfect for turbid water as well as shallow water sources. Credit: Trish Matheny
Most backpacking water filters and purification systems cannot deal with the amount of sediment and silt in mineral rich water sources like the Grand Canyon. The only system that held up in these conditions is the MSR Guardian Purifier, another reason it's one of our favorites. And we love that it utilizes an auto-backflush that maintains the filter with every pump.
The Grand Canyon is one of the perfect testing grounds for water filters. Credit: Steve Mace
A Note on Water Turbidity
Planning for water sources that are entirely saturated with silty sediment — referred to as highly turbid — may be useful. For example, the Colorado River, which has carved out popular backpacking locations like the Grand Canyon, is one of the most turbid rivers in the world. If you live nearby, you've likely seen it transform from a clear, greenish color to something that resembles chocolate milk shortly after rainfall.
If you plan to travel to areas with high turbidity, bring a gallon ziplock bag or a bag specifically designated for settling water. Scoop up the silty water and let it settle for a few minutes. Clear water will remain at the top, with sediment falling to the bottom. Gradually pour the upper layers of water into your filtration device or filter from the top of the bag. This is an easy and cheap “pre-filtration” technique for these areas. Some gravity systems feature a “sediment collector” at the bottom, such as the MSR AutoFlow XL. Other gravity bags simply act as a pre-filter, trapping debris inside the dirty bag and preventing it from passing into the clean reservoir. These tend to clog more easily.
Gravity filtration bags are nice because they effectively pre-filter debris that is too big to pass through the dirty bag into the clean reservoir. Credit: Trish Matheny
The more we use the Grayl Geopress and Ultrapress, the more impressed we are by this innovative design. We tested the Ultrapress on a particularly contaminated stream in Ouray, Colorado, which runs yellow due to pollutants such as lead, arsenic, chromium, and iron oxides. The water smells acidic, and it is acidic. After using the Geopress, all these metals were removed, and the water's pH was neutralized. We drank it shortly after and experienced no unusual tastes or side effects.
Bottle filters like the Grayl Geopress not only filter water but also purify your drinking water from contaminants such as viruses, bacteria, protozoa, and heavy metals. Credit: Trish Matheny
If the size, bulk, and weight of the water purifiers are a turnoff, chemical treatment drops and tablets are an effective alternative for killing viruses. The downside is that you often taste the chemical that is designed to remove harmful contaminants, and they do not filter out particulates. The Aquamira Water Treatment Drops are our favorite chemical treatment system that we tested because, so long as you have enough time for them to work, they kill all waterborne organisms and they don't taste horrible. The Potable Aqua Purification Tablets and MSR Aquatabs can destroy viruses, bacteria, and some protozoans, but not Cryptosporidium.
Pouring the Aquamira drops into our water to kill anything that we'd be concerned about. Credit: Amber King
Filters remove particulates based on size. Protozoans are larger than bacteria, and viruses are approximately 10 times smaller than bacteria. Cysts from Giardia and Cryptosporidium require a filter media with pores smaller than 0.2 microns. Purifiers that filter based on size require filter media with an absolute size of 0.02 microns (note the extra zero) to effectively filter out viruses. Dirt is much larger than all of these microorganisms.
Filtration units like the Platypus GravityWorks are a completely passive, gravity fed, filtration option that is effective at eliminating bacteria, protozoa, and particulates from your drinking water. Credit: Trish Matheny
Personal squeeze bottle systems are the most popular companion of thru-hikers, backpackers, day hikers. There are several models to choose from, but our favorite overall is the LifeStraw Peak Squeeze thanks to its packable size, fast flow rate, and durable, user-friendly design. Not far behind is the Hydrapak Flux 1.5L that features a slightly higher capacity. Both filters are capable of removing bacteria, protozoa, and particulates. While there are other collapsible bottle filtration systems, these two stand out for their simplicity and durability.
Our testing team was impressed with the water quality provided by the Hydrapak Flux 1.5L, offering peace of mind in remote locations. Credit: Trish Matheny
If you're after a filter that includes activated carbon, options like the Katadyn BeFree AC, the Katadyn Hiker Pro, and the Waterdrop Filter Straw and Gravity Bag are available. Of the three, we find ourselves reaching for the BeFree the most. This lightweight and packable design effectively removes bacteria, protozoa, and particulates (confirmed by third-party testing), and the latest bag design is more durable than previous models. The Hiker Pro offers protection from microorganisms and chemicals, such as pesticides, to improve the taste of the water, but the hand pump design is heavy and outdated. And while the Waterdrop includes activated carbon, we weren't impressed with much else when it comes to this affordable design.
The Waterdrop Gravity filter includes activated carbon. Credit: Trish Matheny
And while we did test UV options such as the SteriPEN Ultra, it isn't what we would recommend for excellence in water quality, despite its ability to eliminate waterborne pathogens. After you fill your bottle from the source, you activate the filter before swirling the filter inside your water bottle for about 90 seconds. Our third-party testing showed the SteriPEN effective at removing 99.9% of bacteria; however, it fell short when it came to removing viruses, at only 91.5%. When we combined these findings with the fact that you have to pre-filter particulates, odors, and metals, it makes it difficult to recommend this electronic device, at least in terms of overall water quality.
The LifeStraw Peak Straw is easy to use, just remove the caps on either end and start sipping your hydration direct from the source. Credit: Trish Matheny
Ease of Use
In order to objectively evaluate how user-friendly each filtration system is, we take a look at a few things. Does it arrive at your door ready to filter? Is there a complicated setup process? Does the setup feel intuitive, or do we have to scour the instructions to determine the configuration? Once we're set up, we identify the physical effort it takes to get clean water, and take into account the storage capacity of each filter in case we need to shuttle it back to camp. We also note which filters can draw from a variety of water sources, from shallow puddles to sediment-rich environments and flowing streams.
The easiest setups are the ones that require little thought, few instructions, and easy access. Squeeze bottle water filtration systems are trending thanks to their hassle-free setup and versatility that allow you to fill their soft bottle and squeeze water through the filter, or simply detach the filter and sip from the source. Of all the models that we've tested, the Lifestraw Peak Squeeze, the Hydrapak Flux 1.5L, and the Katadyn BeFree AC are a few of our favorites thanks to their user-friendly and versatile designs. However, all of these require periodic backflushing if drawing from silty sources.
The Katadyn BeFree AC is super easy to use, simply fill the collapsible soft bottle, attach the filter, and start sipping or squeezing. Credit: Trish Matheny
Purification tablets and chemical treatments are also pretty simple and require no field maintenance. Those like the MSR Aquatabs, and Katadyn Micropur Tablets just require you to drop them in the water and wait. Aquamira Drops are also pretty simple but require you to follow a series of specific steps: mix two solutions to activate the chemicals and wait a specified amount of time. The timeframe depends on the contaminants you need to eliminate from the water.
After filling your bottle, dropping in the tablet, move your water to a dark environment, and wait 4 hours for the process to be complete. Credit: Trish Matheny
Some models are easy to use in theory, but are impractical for regular backcountry trips. The Lifestraw Peak Straw, has only one part, and zero complicated steps to follow, it only requires a relatively open water source that allows you to get into position down on your belly before taking a sip. We especially appreciated this design during a canyoneering mission in Yosemite National Park, thanks to its packable design and ability to sip from the deeper pools as we descended Middle Earth. The SteriPen Ultra requires very little work; simply turn the light on. But it requires constant attention, relies on battery power, and will completely restart the 90-second filtration period if you fail to hold the filter at the correct depth in your water bottle.
The SteriPEN Ultra is intuitive and easy to use, it just requires constant attention and runs off battery power, so it's not a bad idea to bring a backup if you're concerned about contaminants in your water source. Credit: Trish Matheny
Hand pumps take more time to assemble before use, and they also require more effort to filter your hydration, achieving a few ounces with every physical pump. The upside is that they provide access to a wide range of water sources, like reaching over steep banks, boat sides, shallow puddles, or fast-moving rivers. The MSR Guardian is a favorite because its intake can capture water from the smallest nooks and crannies, but its larger particle screen can be hard to drop between tree branches, since it's large enough to get caught before reaching the water source.
Hand pumps like the Guardian are easy to use, simply place the hose into the water source and start pumping. Credit: Trish Matheny
While gravity-fed filtration systems are the best choice when it comes to their overall hands-free ease of filtration, they often require a little time to set up. The ideal scenario is to hang the filter from a tree branch or large boulder. If that is not available, you may need to get creative. Reservoirs with large openings and flexible designs can draw water from a wide range of sources. However, because you have to scoop up water, the source needs to have a sufficient pool to collect water. Shallow pools are harder to reach.
The LifeStraw Peak 3L provides a simple setup that is easy to use and also easy to clean thanks to a larger opening where the filter attaches to the soft storage bag. The webbing attachment is sturdy and the carry strap makes it easy to move the bag between the stream and your campsite. Credit: Trish Matheny
Of all the gravity systems that we've tested, we love the Platypus GravityWorks as it features a user-friendly and intuitive setup along with a clean water storage bag that's attached to the dirty water bag, making the process completely passive and hands-free. While some gravity systems require full suspension and can't be placed on the ground, the GravityWorks can filter even when placed over a low branch, on a hillside, or a sloping rock and still utilize gravity to filter.
Setting up the Platypus GravityWorks is easy as can be, simply attach the two storage bags, fill the dirty reservoir, and allow gravity to do the work. Credit: Trish Matheny
Although the GravityWorks features more components than most filters that we've tested, the setup is intuitive and the hands-free filtration is super convenient. Credit: Trish Matheny
Durability and Maintenance
The last thing you want is to be miles deep into your backpacking trip and find out your water filter is broken. You don't want to be without a filter simply because you accidentally drop it on a granite slab, and you definitely don't want to spend hours performing maintenance in and out of the field. We checked this out to find and recommend products that offer high-quality, consistent, and reliable performance with minimal durability issues.
The fail-safe option that we recommend is chemical treatment. Maybe not what you'd expect, or like to hear, but these little guys are invincible. Each comes in either jars or prepackaged tablets, and they have no moving parts, don't require maintenance, and take years to expire. If you want 100% reliability, this is it. Our testing team's favorite chemical treatment is the Aquamira Treatment Drops. We strongly recommend carrying these as a backup system, especially when traveling in the backcountry for extended periods. There are numerous situations where filters can clog, parts may be lost, or things may not function properly. Carrying these treatment drops can mean the difference between life, death, or grave discomfort.
Chemical treatment drops and tabs are perfect for those who want to go light and fast, they don't require any maintenance, you just have to be able to stomach the flavor, or be good at masking it in your water bottle. Credit: Trish Matheny
Aside from chemical treatments, all of the systems we tested require some amount of maintenance and care, depending on the amount of sediment filtered from the water. The Platypus GravityWorks 4L and the MSR gravity systems use the same hollow fiber technology, and it's essential to perform regular backflushes by flipping the filter upside down and allowing water to run through it. Similarly, the LifeStraw Peak Gravity 3L must be flushed with clean water, using a syringe to draw clean water through the filter, which helps dislodge any sediment that builds up in its hollow fibers. While slightly inconvenient, both of these are practical steps to perform out in the woods. Alternatively, the Katadyn Gravity BeFree 6L requires a rinse, which is hard to do with water that isn't clear of sediment in the first place.
The Lifestraw Peak Gravity 3L is easily backflushed with the included syringe while the Platypus GravityWorks simply requires inverting the bags and letting water drain in the opposite direction.
Hand pumps are generally durable… that is, until they become clogged. The MSR Guardian is the most durable and maintenance-free backpacking water purification system we tested, and we'd trust it anywhere. It auto-cleans with every press even in turbid water, offering the best reliability among hand pumps. Unlike other hand pump systems that we tested, it is also freeze-tolerant, making it a great choice for those venturing into colder climates. During our latest round of testing, we sheared off the piston nut after minimal use; however, we were impressed with Cascade Designs' warranty and willingness to ship us a replacement part free of charge and within a timely manner. After 5 minutes, we repaired the part and have been pumping murky water ever since.
The MSR Guardian Purifier is a high-quality and durable design, although we did experience an issue with the piston nut during our latest round of testing.
Our testers can't say enough about the durability of the Hydrapak Flux 1.5L. We have been let down before by less durable variations of soft-sided squeeze bottles, but the Flux is built from a thick, sturdy combination of abrasion-resistant TPU, welded seams, and dual-layer laminate that we couldn't get to fail, no matter how hard we tried. After several days of adventurous rock climbing through sharp chimneys and off-widths with the bottle attached to our harness, we could not get the soft bottle or bail handle to fail. While durability sets this filter apart from other popular squeeze options, easy maintenance is another key selling point. Instead of carrying extra parts to backflush the filter, remove it from the soft bottle and swish it in clean water to remove sediment and particulates. While this process is simple and effective, our testers didn't need it until they filtered water from a particularly turbid river raging with sediment after significant rainfall.
We climbed 3,000 feet of technical granite to the summit of Trinidad Norte in Cochamó Valley with the Flux attached to the back of our harness. The lightweight and durable design (more specifically the flexible plastic bail handle) never failed. Credit: Paddy O'Mara
Another great squeeze bottle is the LifeStraw Peak Squeeze, which doesn't have the same durability complaints as the Sawyer soft bottles. Regular maintenance and proper storage are key to maintaining optimal performance; simply follow LifeStraw's storage instructions while also utilizing the included syringe for backflushing with fresh water in the field. This will maintain performance and help you achieve all 2,000 liters of the filter's projected lifespan.
The LifeStraw Peak Squeeze corrects all complaints regarding squeeze systems with flimsy bottles that are prone to failure when you need them. We attached the Peak Squeeze to our harness during several rock climbs in this remote valley and noted only cosmetic abrasions to the exterior plastic. Credit: Trish Matheny
The updated Katadyn BeFree AC features a new and improved Hydrapak collapsible soft bottle that is significantly more durable than its predecessors. This updated design along with durable flip cap make this one of our favorite options for ultralight missions. That said, the lightweight design is still not was we'd consider a workhorse filter. The lightweight materials are still more prone to failure than other squeeze options.
The updated Katadyn BeFree AC design features an updated Hydrapak soft bottle that greatly improves the durability of this squeeze bottle system. Credit: Trish Matheny
UV purifiers are the most unreliable systems simply because they need a power source. Battery life can be tough to predict, especially in colder temperatures. For this reason, we do not recommend taking filters like the SteriPen along for filtration during extended trips into the backcountry. However, it would be a suitable option for travel or for regularly purifying municipal water sources.
The MSR Guardian Purifier self cleans with every pump. Credit: Trish Matheny
Treatment Time
This metric considers the amount of time required to collect water from the source and then filter it. To test this, we performed three separate time trials and averaged the results to determine the average time to filter one liter. The fastest times received the highest scores.
The fastest way to get water from the source to your mouth is with a straw filter that lets you drink directly from a lake or stream. However, when measuring the time to filter a full liter, these options are typically slower and are heavily influenced by the individual construction of the input, filter body, and straw or bite valve. It also depends on how hard you can suck. We found the LifeStraw Peak Straw personal straw fairly laborious to use, although we appreciated its small profile and think it could certainly come in handy for backcountry enthusiasts who want to bring along a backup filter or who don't mind sacrificing some convenience in the name of traveling light.
The Peak Straw is a solid on-the-go option, featuring a comfortable mouth piece that makes hydration readily available. Credit: Trish Matheny
Squeeze bottle filters utilize a collapsible soft bottle or pouch, providing a modest amount of water storage, ranging from .5L to 1.5L . Of all the soft bottles that we've tested, the LifeStraw Peak Squeeze is our clear favorite. The fast-flow bite valve makes it easy to sip without much effort, and the durable soft bottle is also easy to squeeze into another water bottle if you're filtering for more than one person. This makes it a favorite among hikers, bikers, and runners because water collection takes no time, and treatment is instantaneous.
The LifeStraw Peak Squeeze features a simple, user-friendly design with a fast treatment time. Credit: Trish Matheny
Not far behind the Peak Squeeze are the Katadyn BeFree AC and the Hydrapak Flux 1.5L. We love the updated BeFree design that features a more durable soft bottle reservoir along with a wider mouth opening that eliminates some of the effort of filtration and also increases the treatment time. We consistently filtered one liter in about 20-25 seconds, for a 2 liter per minute treatment time. We used the Flux over 6 weeks of travel in South America, recording an average treatment time of 33 seconds for one liter. The stiffer bottle makes it easier to squeeze and increase the rate when you're trying to move quickly.
The Katadyn BeFree AC features a wide mouth opening along with a fast flow rate that makes hydration easy, whether you're filtering direct from the bottle or into a separate container. Credit: Trish Matheny
The Platypus QuickDraw System is another noteworthy squeeze bottle as it can filter one liter in roughly 25-30 seconds. We also like that the filter is external, which allows us to squeeze every last drop inside the soft bottle.
The Platypus Quickdraw filters one liter of water in 25-30 seconds on average. Credit: Trish Matheny
In order to objectively evaluate the treatment time of each hand pump filter, we pumped over 40 liters of water with each filter, while also timing each stroke required to produce one liter of water in the field. The workhorse in this category is the MSR Guardian as it took around 30 seconds or about 30 strokes to produce one liter of drinking water. Perhaps more notable is that this filter self-cleans with each pump and performs well despite the water source. We noted 30 seconds in clear water sources as well as shallow, cloudy, and murky puddles. The Guardian offered the most consistent performance in our testing overall and worked best in turbid conditions.
The MSR Guardian Purifier requires about 30 pumps or 30 seconds to purify one liter of water. Credit: Trish Matheny
Gravity filters provide decent flow rates, but are often much slower than pumps and squeeze bottle systems, a worthy tradeoff in exchange for a passive, hands-free filtration system, especially when it comes to adventuring with a group. They can process large quantities of water with very little effort, making them highly useful for groups of all sizes. All of the gravity filters are relatively close in treatment time, but the clear winner is the Katadyn BeFree Gravity 6L, producing one liter in just 40 seconds. Close behind is the Platypus GravityWorks 4L comes in third place, filtering one liter in 55 seconds. And the LifeStraw Peak Gravity 3L clocks in at around 90 seconds per liter. Of all these filters, the Platypus GravityWorks is our favorite overall. Even though it's not the fastest, treatment is truly hands-free, as the design includes a clean water storage container to capture all the filtered water, rather than requiring you to attach a separate storage bag or sit with the filter to move the water between water bottles.
Although the filter doesn't have the fastest treatment time, the water quality and flavor is exceptional. Credit: Trish Matheny
While gravity filters are rad because there's so little work involved, there are some stark differences in performance. Please note that flow rates will decrease when used for murkier or turbid water, or if the filters are not properly maintained. Also, note that if you aren't in a rush, the difference in waiting passively for one or two minutes for a liter of water is often not a big deal.
Weight and Packability
Weight and packability are essential considerations for backcountry and international travel where you'll be shouldering every ounce on your back between camps and hostels. For this metric, our team weighed each system before packing them around to determine the relative profile and best application for each design. We tested them with hydration vests, backpacking backpacks, and day packs.
Of all the filtration options available, chemical treatments are, by far, the lightest tool for the job. They can be a terrific choice for planning a long thru-hike or big trail run. Out of the treatments we tested, the MSR Aquatabs and the Katadyn Micropur Purification Tablets can be easily packed into a small bag without needing to carry the entire bottle, dropping the weight down from an already light half ounce. The only drawback is that these can leave a chemical taste in the water that's difficult to mask without adding an electrolyte tab or some fresh mint from the hillside. The Aquamira Treatment Drops can't be portioned out like the tablets, so you'll be carrying the full 3oz of weight, but some prefer them because they don't taste as bad as the tablet options.
Chemical drops and tablets, like the Katadyn Micropur Purification Tablets, are certainly lightweight and affordable, but use potentially harmful chemicals and require lots of treatment time. Credit: Trish Matheny
After chemical tablets, the lightest filtration system is the LifeStraw Peak Straw that weighs only 2.3 ounces and is so small that it can easily stow into your pocket or running vest without really knowing it's there. Following closely behind is the Katadyn BeFree AC, a squeeze filter that weighs only 3 ounces, but includes a Hydrapak collapsible soft bottle and allows you to stand while you hydrate rather than lie on your belly to sip direct from the stream (although it's versatile enough that this is an option as well).
The LifeStraw Peak Straw is so small and lightweight, it's a no-brainer to pack it along whether as your main filtration device or as a backup. Credit: Trish Matheny
The Katadyn Befree packs into the smallest and lightest collapsible soft bottle design that we've tested. Credit: Trish Matheny
The LifeStraw Peak Squeeze and the Sawyer Micro Squeeze both weigh in at 3.8 ounces, and have fast flowing filters and more durable soft bottles.
The Peak Squeeze and Micro Squeeze both weigh 3.8 ounces, however, we prefer the Peak Squeeze for better performance.
Of the gravity fed systems that we tested, we prefer the LifeStraw Peak Gravity 3L thanks to its 8.1 ounce design and its leakproof storage capacity. It saves weight because it doesn't include a clean water storage bag, so you'll either have to pack one along or sit with the filter to interchange it between your water bottles as it cycles clean water through.
The Peak Gravity 3L weighs only 8 ounces including the syringe, soft storage bag, and filter. Credit: Trish Matheny
And for hand pumps, the Katadyn Hiker Pro is the lightest option. At 13.4 oz, it is comparable with many gravity systems, and it is a full 7 ounces lighter than the MSR Guardian Purifier. However, it feels outdated to use, clogs frequently, and takes a lot of muscle work to get your water. We prefer to use hybrid options like the Sawyer Squeeze, which are lightweight and can be used as a gravity filter when you have time, or as a squeeze bottle when you want to keep moving.
The MSR Guardian Purifier packs easily into a convenient storage bag, however, it is often heavy and overkill for most adventures.
Types of Backpacking Water Filters
Before diving into the specific types, it is important to distinguish between water purification and filtration. Water filters strain harmful bacteria and protozoa through the filter, but do not remove viruses. In contrast, water purifiers are specifically designed to kill viruses.
Pump Filters
Pump filters typically treat water by hand-pumping water through the filter, which features a pore size small enough to prevent microorganisms from passing through. While it takes longer to pump the water by hand, they are reliable, and perfect for small groups.
PROS
Solid performance in heavy sediment
Best for shallow water sources
Great in between tree branches and boulders
CONS
Heavy, bulky
More effort to filter
More expensive
Hand pumps require patience and strength but can be reliable for one to two people during backcountry objectives. Credit: Amber King
Gravity Filters
Gravity filters treat water by allowing gravity to push water through the filter, cutting out the time and effort of pumping by hand and freeing up your time to set up camp or cook dinner. It's important to note that the flow rate when using a gravity system will be much slower than if you are manually forcing water through the filter in a squeeze bottle, but the upshot is that gravity is doing all the work, and you probably won't notice a few minutes' difference because you'll be off doing other things. Although they require a tree or something to hang the bag from for gravity to take effect, they are easy to use, offer ample storage, and are perfect for large groups and base camps.
After all water bottles are full of clean water, you can use a gravity filter as a sink or solar shower at your backcountry base camp. Some filter components in gravity-fed systems are even interchangeable with other handheld options, making them even more versatile if you want to switch them out for a smaller squeeze bottle depending on your trip.
PROS
A great choice for groups
Versatile uses
Hands-free, effortless filtration
CONS
Difficult to use in shallow water sources
Heavy, bulky
Slower filtration speed
Gravity filters are super convenient when hydrating a larger group. Credit: Kenji Mowrey
On-The-Go Systems
On-the-go systems work instantly, treating water as you drink. The filter component is a straw like device that you can either fit inside a compatible softsided bottle, or place directly in the water source and start sucking away. These filters are often lightweight and super packable, making them the perfect choice for solo missions. If you want to use them to filter water for more than one person, you can, but it is less convenient. They offer limited water storage, and you'll have to BYO a drinking vessel.
Some brands produce hybrid systems with different sizes of bottles/bags available for purchase, so you can use the filter as a personal squeeze filter bottle, or as a gravity system for 2-3 people.
PROS
Lightweight and packable
Easy maintenance
Great flow rate
CONS
Limited durability
Better for single person use
Difficult to fill in shallow water sources
On-the-go filters are a great choice for ultralight adventures but sipping every ounce of hydration may get old over an extended trip. Credit: Trish Matheny
Bottle Filters
Bottle filters use a double-wall configuration, with a filter built into the removable inner bottle. To filter, you fill the outer bottle and press the inner bottle down to force the water through the filter before drinking. These personalized filtration systems can be heavier, bulkier and less practical for packing for a weeklong backpacking trip. But they are perfect for solo front-country travel or day hikes in the wilderness. We've tested press-action water purifiers, which we love for international travel because they remove all waterborne yuckies, including viruses, bacteria, protozoa, heavy metals, and particulates. The downside is the short filter lifespan as well as the overall weight and bulk of the design, not to mention the expensive replacement cartridges and waste that goes straight to the landfill.
PROS
Great for international travel
Looks like a normal water bottle
Produces some of the cleanest and best tasting water
CONS
Heavy and large
Best for personal use
Expensive cartridges need more frequent replacement
Press action bottle filters and water purifiers, like the Grayl Ultrapress, are perfect for international travel. Credit: Trish Matheny
Chemical Drops and Tablets
Chemical drops and tablets purify water by releasing chemicals that kill viruses, most protozoa, and bacteria. They're super light, maintenance-free, and super reliable. That said, not all are capable of killing Cryptosporidium, which is common in North America, so you'll want to check and double-check the contaminants list before you buy. These treatments also cannot remove any physical matter from your water, so you may want to combine them with another form of filtration, or even run water through a bandana or t-shirt before dropping in the treatment. Lastly, many chemical treatment options can take up to four hours to kill all pathogens and can leave a gnarly taste in your water. While effective, ultimately we recommend saving these treatments for emergency or backup use.
PROS
Super light
Affordable
Great for international use
CONS
Long filtration time
Terrible flavor
Must pre-filter
Although very packable, we recommend using chemical drops and tablets only when absolutely necessary. Credit: Trish Matheny
UV Light Purifiers
UV Light Purifiers are designed to purify water by destroying harmful bacteria, protozoa, cysts, and viruses through contact with ultraviolet light. This process confuses the DNA of these tiny pathogens, which prevents them from reproducing; afterwards, the treated water is safe to consume. It is important to know that these are battery powered devices, and if it runs out of juice, you're out of water. They also don't remove physical particulates from your water, so we don't like to rely on them for longer trips deep into the backcountry. However, they are great for international travel, where you might want to treat clean looking water as an extra step.
PROS
Doesn't take up much space in your pack
Purifies water by destroying viruses
Ok for sharing
CONS
Doesn't remove sediment and debris
Requires a battery charge
Cloudy water can reduce effectiveness
The SteriPEN Ultra will filter out viruses but you'll need to pre-filter in sediment rich water sources. Credit: Trish Matheny
How to Select the Right Backpacking Water Filter For You
While there are many water filtration and purification options, it's useful to identify some key considerations before making a purchase. If you plan on moving quickly through demanding terrain on solo missions, on-the-go filtration may be the perfect choice to drink directly from the stream. Backpacking with a family? Perhaps the simplicity and ease of a gravity-fed filter are the best choice for your base camp. No matter your activity, a filter is designed to meet your specific needs.
We hope the short article below helps you select the best filtration option for your next adventure. Credit: Trish Matheny
What Is In Your Water?
Knowing what contaminants could be in the water source you plan to travel through can be an important consideration before selecting the best water filter for your next adventure. Filters such as hollow fiber, ceramic, or pump filters can filter out the most common bugs you'll find in North American waters, like Giardia and Cryptosporidium, along with particulates and bacteria. However, many don't filter out harmful viruses, which is where purifiers come in. In addition to protozoa and bacteria, purifiers remove or kill viruses you may encounter when traveling internationally to places with less developed sanitation systems.
Lastly, the turbidity, or murkiness, of your water source should influence your decision. Silty, sediment-rich water is common in glacier-fed streams or shallow puddles. While it may not be as dangerous as living pathogens, it can cause your filter to clog and become unusable without proper maintenance. Some filters are more prone to clogging, while others have built-in mechanisms that auto-backflush so you don't have to worry about it.
You never know what could be in the water you plan to hydrate with, it never hurts to be prepared. Credit: Trish Matheny
Whether you're setting out for an ultralight solo mission or backpacking with a group its important to consider your specific needs for water filtration. Credit: Trish Matheny
How Big Is Your Group?
Group size is another key consideration that can quickly narrow down your options. What is light and efficient for solo trips may be overly complicatd or labor intensive for larger groups. If you are planning an adventure with three or more people, a gravity-fed filtration system is a great choice. They are often heavier, require more space in your pack, and feature a slower filtration speed; however, gravity is doing all the work to keep your small group happy and hydrated at base camp. If you're planning a solo mission and would like to move quickly, an on-the-go filter could be the best choice, featuring a lightweight and packable design along with a speedy treatment time to keep you moving quickly.
Determining the number of people in your group as well as where you will be traveling can help you narrow down your filtration needs. Credit: Trish Matheny
How Far Away Is Your Water Source?
The distance between water sources on your upcoming adventure is another key factor. We love hiking through major ranges, like the High Sierras in California and the Wind Rivers of Wyoming, where you never have to carry water, but in other locations you may find that you need to be able to stock up on water to make it to the next stream. If this is the case, consider how far you need to make it, and choose a bladder or bottle size that will do the job. We like that some filters have built-in water storage, which allowed us to fill our personal bottles with clean water, and then grab one last scoop of “dirty” water to stash in our packs and filter further down the trail.
Determining how close your water source is to camp is a key component as to whether or not you'll need a large storage capacity or can get away with a lightweight on-the-go system. Credit: Trish Matheny
Maintenance and Durability
If you're only out for the day on a speedy trail run, having a lightweight, on-the-go filter is a great choice for easy filtering from fresh water sources. They're affordable, convenient, and ideal for personal use. But if you run into any snags, or know that you'll be drawing from particularly mucky water sources, they might not hold up as well, and those extra few dollars saved won't help you if you're out of clean water miles from the trailhead. Paying a few extra dollars for a high-quality, durable filter can make or break your backcountry experience. It can also get you a filter that has lower field maintenance, faster treatment times, and is less likely to clog on the first day of your trip.
If you plan on hiking in particularly silky and sediment-rich environments, hand pumps with a pre-filter will be worth the extra weight and effort. It is also worth noting that not all filters are freeze-tolerant. Filters with hollow core fiber technology can be damaged if water freezes and expands inside them. You can either opt for a different filter style, or protect your hollow fiber filter by sleeping with it inside your sleeping bag if temperatures plummet. It's also worth considering a backup plan such as filtration tablets; these will at least keep you from getting sick from a contaminated water source, even if they taste terrible.
Durability and maintenance can be as simple as swishing the filter in open water. Credit: Trish Matheny
Other Filters to Consider
Katadyn Pocket - We tested this filter in the past and found it to have bomber durability and deliver excellent water quality. However, its $400+ price tag felt exorbitant when there are options that perform nearly as well for a quarter of the price. It's also pretty heavy, and despite the “Pocket” moniker, it's not that small either.
Katadyn Vario - This used to be the standard for producing high-quality filtered water. Now there is a lot of competition. While we still believe this is a suitable filter, it is expensive and heavy compared to other systems.
MSR Trailshot - When released, this was one of the more innovative and lightweight personal water filters. However, there are now many more versatile and inexpensive filter options that are lighter.
We hope our short article helps you select the best filter for your next adventure. Credit: Felipe Tapia Nordenflycht
Conclusion
A critical gear consideration, such as a water filter or purifier, warrants thorough research and hands-on testing. Whether you are filtering water for a group or simply want to add a backup to your emergency kit, this is where we come in. We hope that our insights have helped you in your search and in narrowing down your options. Happy trails!
Having a solid lineup of camping gear you can trust makes all the difference when heading out into the backcountry. If you're in the market for a new backpack or packable stove, we have recommendations for your specific needs and budget. And being prepared with a backpacking gear checklist never hurts anyone.
We hope our testing perspectives and evaluations help you make the best water filter purchase for your next adventure. Credit: Trish Matheny
