Best Backpacking Water Filters and Purifiers of 2022

Check out the best backpacking water filters and learn how to choose the best water filter or purification system for your next adventure.
Male backpacker sitting on ground with gravity fed water filter hung from tree behind him

A backpacking water filter is a key essential for any multi-day outdoor adventure. Parasites and bacteria live in the lakes and rivers that you rely on to stay hydrated in the backcountry. Giardia is the most common and can cause abdominal cramping, nausea, diarrhea,  and vomiting – not exactly what you had planned for your next adventure, right?  

Some argue that you don’t always need to filter water where streams are fed by fresh snow-melt, but keep in mind that if livestock, wildlife, or humans can reach an area, so can contaminants that are transferred via fecal matter.

It’s also important to understand the difference between a water filter and a water purifier so you can be sure that the water you’re drinking is clean, safe, and won’t cause illness out in the backcountry.

Here are the best backpacking water filters and water purifiers as well as tips for how to choose the right purification system for your adventures.


Best Backpacking Water Filters & Purifiers At A Glance


Backpacking Water Filters & Purifiers Comparison Table

See the comparison table below for a quick summary of each of the top water filters for backpacking. You can click on the columns to sort by what’s most important to you.

NameWeightTypeFilter TypeFilter RatePrice
https://bit.ly/3DdYUJrPlatypus GravityWorks Filter10.9 ozFilterGravity1.5L/minute$109.95
https://bit.ly/2TqgGTmSawyer Squeeze3 ozFilterSqueeze/Gravity1.7L/minute$38.95
https://bit.ly/3rwqNYzMSR AutoFlow XL Gravity Filter12 ozFilterGravity1.75L/minute$109.95
https://bit.ly/3juX3UKMSR MiniWorks Ex Water Filter14.6 ozFilterPump1L/minute$109.95
https://bit.ly/3LPnDH2LifeStraw Peak Squeeze Water Filter3.6 ozFilterSqueeze3L/minute$32.95
https://bit.ly/3LN0IMhMSR Thru-Link In-Line Microfilter2.5 ozFilterGravity1.2L/minute$44.95
https://bit.ly/3r8U4Z2MSR Guardian Gravity Purifier18.7 ozPurifierGravity1L/minute$269.95
https://bit.ly/35Otm0bGrayl GeoPress Water Purifier Bottle15.9 ozPurifierPress24 fl. oz. per 8 seconds$99.95
https://bit.ly/3uhV8vqAquamira Water Treaments Drops3 ozPurifierChemical30 min-4 hours$14.95

Water Filter vs Water Purifier – What’s the Difference?

When you’re out in the backcountry, it’s important to have a good way to filter or purify your water. After all, you never know what might be lurking in that mountain stream! There are a few different options available, but the two most popular are backpacking water filters and water purifiers. Both have their pros and cons, so it’s important to choose the right one for your needs.

Backpacking Water Filters

Backpacking water filters are a great option if you’re hiking and camping in countries like the US and Canada. They work by forcing water through a fine membrane, which traps small organisms and particles. This means that they’re effective at removing things like bacteria and protozoa. However, they’re not able to remove viruses, which can be found in water sources in developing countries.

There are several different types of backpacking water filters to consider:

Gravity Water Filters

Gravity filters filter water by using gravity–there is no squeeze or pumping necessary. They generally consist of a bag with a hanging mechanism that you fill with the water you want to filter, a filter, and a long tube that can be used to fill whatever container you’d like. Simply fill the bag from the water source, hang it up, and gravity carries water down through the filter and into a new container. Challenges for gravity water filters can be filling the bag from shallow water sources and finding a place to hang it.

Woman sitting with back against large rock using gravity-fed water filter to filter drinking water.
Linda, Bearfoot Theory’s Director, using a gravity-fed water filter on a Sequoia National Park backpacking trip

Squeeze Water Filter

Squeeze water filters require manual effort to squeeze water through the filter. These types of filters need to be backflushed more often than other filters to prevent clogging which reduces the flow rate and makes it harder to squeeze water through. Backflushing is how you clean the filter, and this is done by using a syringe to shoot water through the filter in the opposite direction that water filtration takes place. Most squeeze water filters come with a syringe cleaning system to make this process simple.

Sawyer Squeeze water filtration
Sawyer Squeeze, a squeeze water filter

Pump Water Filter

Pump water filters require manual effort to pump water through the filter. Most water filter pumps come with two hoses, one that you drop into the body of water you want to filter from and one that transfers the filtered water into your water container of choice.

These types of water filters are versatile because they can filter from shallow running water and the filter itself is replaceable, but they do require you to sit alongside the water source and pump.

MSR Mini Works
MSR Mini Works, a pump water filter

Backpacking Water Purifiers

Water purifiers are a better choice for backpacking and traveling in developing countries or anywhere else where you might come across waterborne viruses. They work by using chemicals or ultraviolet light to kill viruses, bacteria, and other microorganisms. This makes them much more effective than filters for purifying water. However, they can be bulkier and more expensive, so they’re not always the best choice for backpacking, especially if you’re focused on trips here in the US.

Here are the most common options for backpacking water purifiers:

UV Light Water Purifiers

Pen-style UV light water purifiers use UV light to treat water. You basically fill a container with water and swirl the pen around until the UV light turns off (which usually takes a minute or so). They’re lightweight, super easy to use, don’t clog or need to be replaced, and they can easily treat water for a large group.

UV Light Purifiers also virtually eliminate viruses in addition to bacteria and protozoa while most water filters do not eliminate viruses. The downside to these purifiers is that they don’t filter out sediment and they require batteries or a charger to work. If you choose to use a UV Light water purifier, always carry a backup water filtration option as these can be finicky to work.

Steripen water purifier
Steripen water purifier

Water Filtration Bottles

Water filtration bottles have a built-in filter. You basically fill the bottle with water and the water is either filtered as you sip through the filter or pressed through the filter like a coffee press. They’re very easy to use and provide a method of filtering and drinking all in one bottle.

However, the amount of water you can filter and carry is constrained by the size of the bottle.

Person pushing down a Grayl water bottle filter
The GRAYL GeoPress Bottle is one of the few filters that remove viruses in addition to bacteria and protozoa

Purification Tablets or Drops

Water purification tablets or drops virtually eliminate bacteria, most protozoa, and viruses from water whereas most water filters do not remove viruses. They are very easy to use: Simply drop them into the water you gathered to treat, follow the instructions, and wait.

The downsides to tablets and drops are that they do contain chemicals, so they can leave a bit of an iodine taste, and they’re not recommended for pregnant women or people with thyroid conditions. They can also take up to four hours to completely kill some microorganisms (which is a long time if you’re thirsty after a big day of backpacking!).

While we wouldn’t recommend tablets or drops as your main purification method for backpacking, it’s always good to have a few of these on hand in case your primary filtration method breaks or in case you need them in a pinch while traveling.

Kristen using water purification drops on a backpacking trip
Kristen using water purification drops on a backpacking trip

The Best Backpacking Water Filters

As I mentioned above, water filters remove bacteria and protozoa from water as well as small particles of dirt and silt. Water filters do not remove viruses, which are typically only found in developing countries.

Platypus GravityWorks Filter System

Bearfoot Theory favorite

Key features

  • Weight: 10.9 oz
  • Filter type: Gravity
  • Filter Rate: Up to 1.5L per minute
  • Effectiveness: Eliminates bacteria, protozoa, and sediment. Does not eliminate viruses.
  • MSRP: $109.95

Check price: REI | Backcountry

Platypus GravityWorks Filter System

Great For: large groups, filtering a large amount of water at once, setting up a fixed campsite in the backcountry for a few days, car camping near a water source where there is no potable water available

Pros: comes with several different bottle top adapters, one of the faster gravity water filters on the market, comes with two bags

Cons: can get clogged easily if filtering silty water, can be hard to fill bag in shallow water

The Platypus GravityWorks Filter is a gravity filter (as the name implies) and can filter 1.5 liters per minute. The great thing about it is that it includes two 2L bags, so you always have one for clean water. Alternatively, you can filter water straight into a bottle using one of the several bottle top adapters that fit Nalgenes, Klean Kanteens, and most other bottles.

To use it, you basically just fill up the dirty bag, hang it up, and let gravity do the rest!

Check out our detailed review and video of the Platypus 2L Gravity Filter when Kristen used it in Zion National Park. This is also the filter Kristen used on the John Muir Trail, although she only used the dirty bag and filtered it into a super lightweight Platypus Soft Bottle.

Looking for a bigger option? Snag the Platypus 4L system or 6L system for group or family trips into the backcountry!

Sawyer Squeeze

Best Ultralight Water Filter

Key features

  • Weight: 3 oz
  • Filter type: Squeeze and gravity
  • Filter Rate: Up to 1.7L per minute
  • Effectiveness: Eliminates bacteria, protozoa, and sediment. Does not eliminate viruses
  • MSRP: $38.95

Check price: REI

Sawyer Squeeze water filter

Great for: long day hikes, ultralight backpacking trips, thru-hiking

Pros: very lightweight, versatile, comes with a syringe to backflush, budget-friendly

Cons: ceramic filter can crack in cold temperatures, filters a small amount of water at a time, can get clogged easily

The Sawyer Squeeze is one of the smallest and most lightweight water filters out there weighing in at only 3 ounces. In addition to being lightweight, the Sawyer Squeeze is also very versatile. You can use it by:

  • Squeezing water straight into your mouth or a water bottle
  • Attaching it to the hose of a hydration reservoir and drinking through the nozzle
  • Using the included straw to drink water straight from a source
  • Setting it up as a gravity filter

However, this filter does take a substantial amount of time to filter multiple liters and requires some manual effort in squeezing the water through the filter. It can also get clogged easily. Another to consider before buying this filter is that it is ceramic which means it can freeze in cold temps. A quick fix to prevent this is to put it with you in your sleeping bag at night.

Kim, our former Community Manager, used the Sawyer Squeeze for her 4-month PCT thru-hike and while it was lightweight, she still found it frustrating to use at times due to its small size and propensity for getting clogged.

That being said, it’s still a great budget-friendly filter for short backpacking trips and long day hikes.

Man using Sawyer Squeeze water filler to fill up water bottle
The Sawyer Squeeze is lightweight and compact, but it does filter water slowly and requires manual effort

10 L MSR AutoFlow XL Gravity Filter

Best Water Filter for Large Groups

Key features

  • Weight: 12 oz
  • Filter type: Gravity
  • Filter Rate: Up to 1.75L per minute
  • Effectiveness: Eliminates bacteria, protozoa, and sediment. Does not eliminate viruses
  • MSRP: $109.95

Check price: REI | Backcountry | MSR

MSR AutoFlow 10 L gravity backpacking water filter

Great for: large groups, car camping trips where there is no potable water available

Pros: easy to filter large quantities of water, has a mesh screen to keep larger debris from clogging the filter

Cons: would be nice to have the option to purchase a smaller bag when not backpacking with a large group

If you’re looking for a high-volume backpacking water filter for group backpacking trips, the MSR AutoFlow XL Gravity Filter comes with a 10L bag so you can minimize trips to the river. It can filter 1.75 L of water per minute via gravity, providing you with clean drinking or cooking water quickly and hassle-free. The larger bag is also handy if you aren’t camping directly near a water source since the 10L capacity will minimize trips to collect water. It also weighs the same as the 4L Platypus Gravity Works so the extra capacity doesn’t add any weight.

We also love that the bag has an integrated mesh lining to keep larger debris from entering the filter. While this filtration system might be overkill for most people going on backpacking trips solo or with a friend, this is the best setup if you’re with a large group in the backcountry or are going to be camped far away from your water source.

MSR MiniWorks EX Water Filter

Best Pump Water Filter

Key features

  • Weight: 14.6 oz
  • Filter type: Pump
  • Filter Rate: Up to 1L per minute
  • Effectiveness: Eliminates bacteria, protozoa, and sediment. Does not eliminate viruses
  • MSRP: $109.95

Check price: REI | Backcountry | MSR

MSR MiniWorks EX Water Filter

Great for: people who prefer a hand pump filtering system, fast water filtration

Pros: can be disassembled in the field and cleaned without extra tools

Cons: not compatible with water bottles other than a wide-mouth Nalgene, pumping water can be tedious and require a lot of manual effort, slightly heavier than other options on this list

The MSR MiniWorks Ex Water Filter is one of the best hand pump water filters out there if you prefer a pump filter over a gravity filter. It has a ceramic/carbon filter to remove bacteria and protozoa and it can process up to water at 1 liter per minute. The bottom can also easily screw onto an MSR Dromedary Bag or Nalgene bottle for easy operation.

This filter comes with a cleaning kit for easy cleaning in the field.

Hand pump filters are our least favorite due to the ease of newer gravity and squeeze style filters, but for people who like the old-school techniques, this is the best pump style water filter.

LifeStraw Peak Squeeze Water Filter System

Best Water Bottle Filter for Day Hikes 

Key features

  • Weight: 3.6 oz
  • Filter type: Squeeze
  • Filter Rate: Up to 3L per minute
  • Effectiveness: Eliminates bacteria, protozoa, and sediment. Does not eliminate viruses
  • MSRP: $32.95

Check price: REI | LifeStraw

LifeStraw Peak Squeeze Water Filter System

Great for: trail runs, day hikes

Pros: Very versatile, easy to stash when empty, faster than other filter options

Cons: requires frequent refills since it filters straight from the bottle (which is not ideal for most backpacking trips where freshwater is not always readily available)

The LifeStraw Peak Squeeze Water Filter is great because it’s super versatile and straightforward to use. You can drink straight from the nozzle, remove the filter from the bottle and use it as a straw, attach the filter as an inline filter on your hydration reservoir, or even set it up as a gravity filter. The bag is designed to be very durable, so you don’t have to worry about rips, tears, or punctures.

The threads on the filter also allow it to be screwed onto nearly any disposable water bottle (but you’re not using those anymore, right?). Plus, for each LifeStraw purchased, 1 child in a developing community receives safe drinking water for an entire school year – how cool is that?

While a water bottle filter is not recommended for backpacking (you need to be able to carry a lot more water), it’s a great solution for day hiking.

Best inline water filter for hydration reservoirs

Key features

  • Weight: 2.5 oz
  • Filter type: Gravity
  • Filter Rate: Up to 1.2L per minute
  • Effectiveness: Eliminates bacteria, protozoa, and sediment. Does not eliminate viruses
  • MSRP: $44.95

Check price: REI | MSR

MSR Thru-Link In-Line Microfilter

Great for: ultralight backpacking trips where every ounce matters, fast-paced adventures

Pros: most lightweight option on our list, compatible with any hydration reservoir, includes carbon filter for better tasting water

Cons: requires you to put dirty water in your water bladder, can crack in freezing temps

The MSR Thru-Link In-Line Microfilter is one of the best backpacking water filters because instead of manually filtering your water into a bottle or a separate reservoir, the thru-link attaches directly to the hose of your hydration bladder and filters as you drink, which eliminates the need for carrying extra gear. You can also use it as a gravity filter! It can be set up easily and quickly, so it’s a great choice if you’re heading out on a face-paced mission. This is very similar setup to the Sawyer Squeeze, but has stronger connection points, making it more secure to filter your water into various reservoirs.

The only downside is that you’ll either need to put dirty water into your drinking reservoir so if you want to use it without the filter in the future, you’d need to clean it properly, otherwise, you risk cross contamination. The alternative would be to bring two bladders (one for clean water, one for dirty water).


Best Backpacking Water Purifiers

Unlike water filters, water purifiers kill or remove microorganisms including viruses either through a filter or by UV light. Below are our top choices for the best backpacking water purifiers.

MSR Guardian Gravity Purifier

Best Water Purifier for Large Groups

Key features

  • Weight: 1 lb 2.7 oz
  • Filter/Purifer type: Gravity
  • Filter Rate: Up to 1L per minute
  • Effectiveness: Eliminates bacteria, protozoa, viruses, and sediment
  • MSRP: $269.95

Check price: REI | Backcountry | MSR

MSR Guardian Gravity Purifier

The MSR Guardian Gravity Purifier works essentially the same as the MSR AutoFlow XL Gravity Filter above, but its 2-stage purifier removes harmful viruses as well. If you’re planning a multi-day trek with a group of friends to a developing country, this is an essential piece of gear.

Grayl GeoPress Water Filter & Purifier Bottle

Best Water Bottle Purifier for International Travel

Key features

  • Weight: 15.9 oz
  • Filter/Purifier type: Press
  • Filter Rate: 24 fl. oz. per 8 seconds
  • Effectiveness: Eliminates bacteria, protozoa, viruses, and sediment
  • MSRP: $99.95

Check price: REI | Backcountry | Grayl

Grayl GeoPress Water Filter and Purifier Bottle

Great for: international travel, day hikes, backpacking trips with ample water

Pros: filters water quickly, requires no set up, easy to use

Cons: the amount of water you can filter and carry is constrained by the size of the bottle

The Grayl GeoPress Water Purifier Bottle is a great companion for any day hike, backcountry adventure, or international trip. The press system can filter out most harmful microorganisms including bacteria, protozoa, and viruses.

The filter is also replaceable and is good for up to 350 cycles. While this may not be the lightest or most compact water filter for backpacking, it’s great for long day hikes and other adventures where there’s ample water, especially in countries where viruses may be present. When traveling, it also helps eliminate the need for single-use water bottles. For that, we give it a big thumbs up!

Aquamira Water Treatment

Best Water Treatment Drops

Key features

  • Weight: 3 oz
  • Purifier type: Chemical
  • Filter Rate: 30 minutes – 4 hours
  • Effectiveness: Kills bacteria, protozoa, viruses
  • MSRP: $14.95

Check price: REI

Aquamira Water Treatment Drops for purifying water

Great for: carrying as filtration backup, backpacking trips with clear-running water, backcountry camping with a basecamp

Pros: super lightweight, reliable with no risk of pieces getting broken or malfunctioning, inexpensive

Cons: you need to wait at least 30 minutes for the drops to work – some microorganisms can even take up to 4 hours to be killed, does not remove sediment or dirt

If you know you’ll have clear, running water and you have time to wait for purification drops to work (which can take up to 4 hours), then the two-step Aquamira Water Treaments Drops are a great choice. These drops don’t contain iodine or chlorine, which can make water taste funky. Instead, they contain Chlorine dioxide (not the same as chlorine), a chemical that has been proven to kill 99.9% of bacteria, protozoa, cysts, and viruses.

Keep in mind that this not a filtration system, so you’ll need fresh, clear water unless you’re ok with drinking some silt and sediment.

If you prefer tablets over drops, check out the Katadyn Micropur Purification Tablets.

Woman preparing water purification drops at backcountry campsite
Kristen using the Aquamira Purification Drops on a recent backpacking trip

How to Choose a Backpacking Water Filter

If you’re new to backpacking, here are a few tips on how to choose your first (or next) water filter for the backcountry.

1. Purification vs. Filtration

Let’s start here because it’s super important to know the difference. The difference between a water filter and a water purifier is the size of the microorganism each type eliminates. 

Purification eliminates viruses while filtration removes bacteria, protozoa, and sediment.

Bacteria in water sources is a concern within the USA and Canada, while protection from waterborne viruses is more important for international travel.

Filtration also removes sediment and silt, making the water more pleasant to drink while purification does not (unless it has a built-in filter like the GRAYL GeoPress Bottle).

2. Weight

Weight is an important factor to consider for all of your backpacking gear and water filters are no exception, especially on a long-distance trip.

While not always the case, there tends to be a tradeoff between weight and speed of filtering. The smaller and lighter the filter, generally the longer the filtration process.

Kristen walking on rock slab a lake water edge carrying water filter filled with water with mountains covered with patches of snow in background

3. Filtration or Purification Speed

How patient are you? Some filters are speedy, while others take quite a bit of time. It’s also important to consider how many people you will potentially be filtering water for since more people means more water and more time.

Using chemicals, such as chlorine or iodine to purify water can take up to 4 hours while other filters can do the job within minutes. If you are on any kind of backpacking trip, whether just a quick weekend trip or a thru-hike of a long-distance trail, time is of the essence–remember you came to explore the outdoors and you will not want a treatment method that takes a long time!

4. Type of Backpacking Water Filter

As we covered at the beginning of this post, some filters require a simple set-up and then allow you to sit back and relax while your water is filtered. For example, gravity filters work by using gravity to filter water from one bag to another.

Other filters require active participation–meaning you have to physically filter the water usually by either squeezing or pumping it through the filter.

It’s important to also consider that some backpacking water filters are ceramic and cannot be exposed to extremely cold temperatures or else they will crack.

5. Cleanliness of Water Source

Different elements can murk up water in varying ways such as glacial sediment, leaf debris, and/or mud stirred up by a recent rainstorm. If you plan to use tablets of chemicals to purify your water you’ll also need to bring something to act as a filter to help you remove dirt and debris prior to filtering.

Depending on how congested the water is sometimes a simple bandana can act as a pre-filter.

Person filling water filter reservoir from shallow, muddy puddle
some water sources can be tough to get a good flow without sediment

Do you have a favorite backpacking water filter or purification system? What has worked best for you? What questions do you still have? Leave a comment below!

Written by Kristen Bor

Hey there! My name is Kristen, and this is my outdoor blog. I discovered the power of the outdoors in my 20s, at the time I needed it most. Now 15 years later, prioritizing that critical connection with nature continues to improve my life. My goal at Bearfoot Theory is to empower you with the tools and advice you need to responsibly get outside.

28 comments on “Best Backpacking Water Filters and Purifiers of 2022

  1. Very nice article. Great collection of the most popular options. I believe that pretty much any filter should be prevented from freezing, rather than simply the ceramic versions. And I have actually used a Gravity Works while hiking by simply holding the dirty bag up over my shoulder and the clean bag down at my side. By the time I hiked the one mile back to the main trail from a lake, I had 4 liters of clean water. Trees are not required, but they are certainly appreciated

    1. Thanks Bill! To be safe it is definitely best to protect all filters from freezing, thanks for pointing that out! That so fun to hear how you used the Gravity Works filter “on the go”! Why wait for water for filter when there is so much to explore? Hope you have some great adventures planned for 2017!

  2. This post is the perfect timing for me! I am starting to get into backpacking (I have been a devote car camper!) and need a filter. I just got a mummy sleeping bag (goodbye huge two person bag!). Thank you for the research, I will be saving this for when I make my purchase!

    1. Thanks Katie! So great to hear you are venturing into backpacking! We are going to post this month a guide to purchasing a sleeping bag for backpacking. Any other big gear items you’d enjoy seeing a guide on? Make sure to check out our one on sleeping pads and backpacking tents! Hope 2017 brings awesome adventures and memories for you!

      1. This blog has been so helpful as someone who is just starting out. I don’t know if you could consider it a big gear item, but I think I guide on first aid kits would be helpful. Should I go with a pre-made kit or gather supplies myself. What do experienced hikers consider to be essential supplies? Thanks!

  3. I’ve used a steripen, but the one I have only does a liter at a time, and it requires you to carry a bottle, not just a bladder, to sterilize. I think I’m going to try the Sawyer Squeeze instead.

    1. Lynn, yes the Steripen definitely has some negatives to it but it is great if you travel internationally in the near future! I loved my Sawyer Squeeze on the PCT, hope you enjoy it as well. Cheers to new adventures ahead!

  4. Great post!!
    Steripen and Aquamira drops are great , however l do not like the chlorinated taste they produce.My preference is Sawyer Squeeze, but maybe it is time to look at some other options.

    1. JP that is an awesome set-up! Thanks so much for sharing! You are totally right about the Sawyer bags as well–they aren’t the most durable for longterm use. Thanks for sharing your great set-up!

  5. I have used the Sawyer mini on several multi-day backpacking treks and found it to be a great little filter. While it indeed needed a little muscle to squeeze the water through, it think the weight and price are a hard to beat combination. The versatility of being able to be screwed onto most water bottles and begin drinking right away is also a plus. At some point, I will likely upgrade to the squeeze as it looks like is has a little better output per squeeze.

    1. Thanks Paul! Both Sawyer models are great, I definitely think once you try the Squeeze you won’t be able to downsize to the Mini! Hope you have some great adventures this year!

    1. The LifeStraw is a great backup but its a little difficult to use for a long backpacking trip or for a big group since it only filters water through the straw. It is difficult to use to filter a large quantity of water to use for cooking and/or to have readily available for consumption. Definitely a great backup though that is lightweight and easy to pack!

  6. Hello Kristen, It is a really wonderful blog. I agree with your point, Purification eliminates viruses, while filtration removes bacteria. Whenever I go for outing I always use a water filter. It gives us a good idea for carry water filter at journey and outdoor destination. The smaller and lighter the filter, generally the longer the filtration process, it is very important to take care of our health. So thank you for sharing such a nice idea.

  7. I’m really skeptical of taking water from just any source when out camping. A proper water filter is by all means indispensable. I really like your roundup which looks pretty much a sum-up of the best filters to pack-away with. My best recommendation are the gravity filters due to their free-stylishness and hands-free filtering.

  8. Very nice article. Great collection of the most popular options. I believe that pretty much any filter should be prevented from freezing, rather than simply the ceramic versions. And I have actually used a Gravity Works while hiking by simply holding the dirty bag up over my shoulder and the clean bag down at my side. By the time I hiked the one mile back to the main trail from a lake, I had 4 liters of clean water. Trees are not required, but they are certainly appreciated

  9. It’s such an informative article. I am fond of traveling .so, a backpacking water filter will help me a lot.thanks for sharing this article. Keep posting like this.good wishes from me.. 🙂

  10. Love this amazing backpacking water filter guide. This is really a great guide about portable filter which helps in a lot of places. Thank you for sharing it.

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