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10 Best Backpacking Water Filter Options of 2024

27/08/24
Edmund
Written By: Edmund Yeo
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Choosing the best backpacking water filter is essential for safe hydration on the trail. This guide covers backpacking water filters that have been tried and tested for various needs, from ultralight hikers to large groups. Read on to discover the one that meets your needs.

Overview of the Best Backpacking Water Filters

Sawyer Squeeze Review
Sawyer Squeeze
Best Overall Backpacking Water Filter

#1 Sawyer Squeeze

$39.99
The Sawyer Squeeze stands out as the best overall backpacking water filter for 2024, and for good reason.

Pros

Lightweight and portable
Fast flow rate
Versatile usage options

Cons

Bags can break easily
Potential for leaking if not properly emptied
Weighing in at just 3 ounces, this filter is incredibly lightweight, making it an ideal choice for multi-day hiking and backpacking trips. 

Its versatility is unmatched, allowing you to either use it directly from a water source with a straw or screw it onto a plastic water bottle for easy drinking. This backpacking water filter review highlights its effectiveness and convenience.

One of the key features that sets the Sawyer Squeeze apart from other filters is its impressive flow rate. It can filter one liter of water in just 40 seconds, which is particularly beneficial when you need to hydrate quickly on the trail. 

However, handling the bags with care is crucial as they can break, and the filter should be properly emptied to avoid any potential leaks.

Rating:
Price: 4/5
Design: 4.5/5
Performance: 5/5
Durability: 3.5/5
Lifestraw Peak Squeeze Review
Lifestraw Peak Squeeze
Best Collapsible Bottle Filter

#2 Lifestraw Peak Squeeze

$43.95
For those who need quick and easy access to clean water while on the move, the LifeStraw Peak Series Collapsible Squeeze Bottle Water Filter System is the perfect solution.
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Pros

Compact and lightweight
Effective against bacteria, protozoa, and microplastics
Quick filtration time

Cons

Requires regular maintenance
Limited capacity
Weighing just 3.8 ounces, this compact squeeze and lightweight filter is ideal for hikers and backpackers who prioritize portability and performance.

The LifeStraw Peak Squeeze is effective at reducing bacteria, protozoa, and microplastics, ensuring that you have safe drinking water wherever your adventures take you. 

It can fill one liter of water in about 35 seconds, making it one of the fastest filters in its class. Regular maintenance is necessary to keep the filter in optimal condition.

Rating:
Price: 4/5
Design: 4/5
Performance: 4.5/5
Durability: 4/5

platypus gravityworks 4.0l filter system
Platypus GravityWorks Group Camping Water Filter System
Best for Group Camping

#3 Platypus GravityWorks

$109.03
The Platypus GravityWorks is the go-to choice for group camping trips, offering a high-capacity water filtration solution that requires minimal effort.
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Pros

High-capacity filtration
Minimal effort required
Quick setup time

Cons

Bulky for solo travelers
Requires hanging for optimal flow
Capable of filtering over 1.5 liters of water each minute, this gravity system is perfect for large groups who need to quickly and efficiently filter large volumes of water.

Setting up the Platypus GravityWorks is a breeze, taking about a minute to get everything ready for filtration. Though its bulky size may not be ideal for solo travelers, it excels in group settings requiring high-capacity filtration. 

Just hang the system high enough to achieve optimal flow rates, and you’ll have clean water in no time.

Rating:
Price: 3.5/5
Design: 4/5
Performance: 5/5
Durability: 4/5

Katadyn BeFree 0.6L
BeFree 0.6L
Best for Ultralight Backpacking

#4 Katadyn BeFree 0.6L

$39.95
Ultralight backpackers, rejoice! The Katadyn BeFree is the perfect water filter for those who prioritize weight savings without sacrificing performance.
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Pros

Extremely lightweight
Compact and portable
Easy to clean

Cons

Limited capacity
Requires careful handling
Weighing only 2.1 ounces, this filter is one of the lightest options available, making it a top choice for trail runners and cyclists as well. 

The BeFree features a flexible bottle that can be compressed when empty, saving valuable space in your pack. Its high flow rate of 2.0 liters per minute ensures you can quickly and efficiently get the water you need. 

To maintain optimal performance, simply swish the filter in water.

Rating:
Price: 4/5
Design: 4.5/5
Performance: 4.5/5
Durability: 3.5/5

lifestraw peak series
lifestraw compact gravity 3l water filter system
Best Gravity Filter for Solo Use

#5 LifeStraw Peak Gravity 3L

$49.46
The LifeStraw Peak Series Gravity filter is designed specifically for solo backpackers who need a compact and efficient solution for clean water.
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Pros

Compact and efficient
Minimal effort required
Easy maintenance

Cons

Slower flow rate
Limited capacity
Weighing 6.9 ounces, this gravity filter system is easy for solo hikers to manage and handle during their adventures among all the gravity filters in the marketplace.

One of the standout features of the LifeStraw Peak Gravity filter is its minimal effort required to filter water, allowing users to access clean water quickly and efficiently. 

Flushing the filter with clean water using a syringe ensures it stays in optimal working condition.

Rating:
Price: 4/5
Design: 4/5
Performance: 4/5
Durability: 4/5

Aquamira Water Treatment Drops Review
Aquamira Water Treatment Drops
Best Chemical Treatment

#6 Aquamira Water Treatment Drops

$16.19
Aquamira Water Treatment Drops are an excellent chemical treatment option for minimalist backpackers and those needing a reliable backup method.
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Pros

Lightweight and portable
Effective against bacteria, protozoa, and viruses
No unpleasant taste

Cons

Does not filter particulates
Longer treatment time
Weighing only 3 ounces, these drops are easy to carry and highly effective against a range of microorganisms, including bacteria, protozoa, and viruses. 

The active ingredient, chlorine dioxide, purifies water by breaking down harmful microorganisms without leaving an unpleasant taste. 

The treatment process, which can take 30 minutes to four hours depending on water quality, requires planning accordingly.

Rating:
Price: 5/5
Design: 4/5
Performance: 4.5/5
Durability: 4/5

MSR Guardian Water Purifier
MSR Guardian Water Purifier
Best for Virus Protection

#7 MSR Guardian Water Purifier

$292.39
For backpackers traveling to areas with high contamination risks, the MSR Guardian water purifier is a must-have.

Pros

Lightweight and portable
Effective against bacteria, protozoa, and viruses
No unpleasant taste

Cons

Does not filter particulates
Longer treatment time
This military-grade purifier effectively removes viruses, bacteria, protozoa, and particulates, ensuring safe drinking water wherever you are. 

One of the unique features of the MSR Guardian is its built-in backflushing system, which maintains functionality even in turbid water conditions.

Although heavier and more expensive than other options, its reliability and comprehensive protection justify the investment.

Rating:
Price: 3/5
Design: 4/5
Performance: 5/5
Durability: 5/5

GRAYL GeoPress
Grayl Geopress Water Purifier Bottle
Best All-in-One Solution

#8 GRAYL GeoPress 24 oz Water Purifier Bottle

$99.95
The Grayl GeoPress is the ultimate all-in-one solution for both international travelers and hikers.
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Pros

Comprehensive purification
Quick filtration process
Durable design

Cons

Heavy
Limited capacity
Its versatile design allows it to remove particulates, bacteria, protozoa, viruses, chemicals, and heavy metals, making it suitable for a wide range of environments. 

Despite its relatively heavy weight of 19.4 ounces, the GeoPress is designed to withstand falls of up to 10 feet when filled with water, ensuring durability in rugged conditions. 

With a quick filtration process of 8 to 12 seconds, it offers fast access to clean water.

Rating:
Price: 4/5
Design: 4.5/5
Performance: 5/5
Durability: 4.5/5

Katadyn Gravity Befree 6L Review
Katadyn Gravity Befree 6L
Best for Large Groups

#9 Katadyn BeFree Gravity 6L

$91.96
The Katadyn BeFree Gravity 6L is designed with large groups in mind, offering a high-capacity water filtration solution that is both efficient and easy to use.
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Pros

High-capacity filtration
Easy to set up and maintain
Efficient flow rate

Cons

Bulky when full
Requires careful hanging for optimal flow
The filter utilizes a hollow fiber design with a pore size of 0.1 microns, effectively removing bacteria and protozoa from the water.

One of the standout features of the Katadyn BeFree Gravity 6L is its ability to filter water at a rate of 33 to 40 seconds per liter, making it a highly efficient option for group use. 

When filled to its 6-liter capacity, the bag can be heavy and requires careful handling and hanging to achieve optimal flow rates.

Rating:
Price: 4/5
Design: 4/5
Performance: 4.5/5
Durability: 4/5

MSR Autoflow XL Gravity Filter
MSR Autoflow XL10L Gravity Filter
Best for Extended Trips

#10 MSR AutoFlow XL10

$124.95
The MSR AutoFlow XL 10 is an excellent choice for extended trips and basecamps, offering a high-capacity filtration solution that can double as a handwash station or shower during warmer seasons.

Pros

High-capacity for large groups
Versatile usage
Doubles as a handwash station or shower

Cons

Slower flow rate
Requires regular maintenance
This versatility makes it an invaluable tool for long-term outdoor adventures.

While the flow rate of the MSR AutoFlow XL is slower compared to traditional filters, its ability to hold up to 10 liters of water makes it ideal for group settings. 

Although regular maintenance is required to ensure optimal performance, the benefits of a reliable, multi-purpose filtration system far outweigh the cons.

Rating:
Price: 4/5
Design: 4/5
Performance: 4/5
Durability: 4/5

How to Choose the Best Backpacking Water Filter

how to choose the best backpacking water filter

Consider several important factors to ensure the water filter meets your specific needs. Here are key aspects to keep in mind:

Weight is particularly crucial for ultralight backpackers. Lightweight filters like the Katadyn BeFree, weighing only 2.1 ounces, are perfect for those who prioritize minimal pack weight.

For group camping, heavier options like the Platypus GravityWorks may be more suitable due to their higher capacity.

Flow rate determines how quickly you can collect water, which is vital when you’re on the move. The Sawyer Squeeze, for instance, filters one liter of water in just 40 seconds, making it an excellent choice for fast-paced adventures.

In contrast, gravity filters like the LifeStraw Peak Series Gravity may have slower flow rates but require less effort.

Understanding the intended use of the filter can guide your choice. Personal use filters, such as the LifeStraw Peak Squeeze, are compact and easy to carry, ideal for solo hikers.

On the other hand, gravity systems like the Katadyn BeFree Gravity 6L are better suited for group settings where high-capacity filtration is needed.

Also, take into account the versatility and ease of maintenance. Filters that are easy to clean, like the Katadyn BeFree, can be quickly maintained in the field. Compatibility with different water sources, such as streams or lakes, is also essential for versatile use.

Understanding Filtration vs. Purification

Understanding the difference between filtration and purification is key to ensuring safe drinking water in the backcountry. These two methods serve different purposes and are suitable for various situations.

Water filters primarily target protozoan cysts and bacteria, making them suitable for most backcountry trips in the U.S. and Canada, where the risk of viruses is typically low. The Sawyer Squeeze, for instance, is a popular filter that effectively removes these contaminants.

Purifiers, on the other hand, remove a wider range of pathogens, including viruses. This is crucial for international travel or areas with high contamination risks, where viruses like Norovirus and Hepatitis A may be present. The MSR Guardian Purifier is an excellent example, offering comprehensive protection against viruses, bacteria, and protozoa.

Physical purifiers, like the Grayl GeoPress, effectively eliminate contaminants down to 0.02 microns, capturing smaller pathogens such as viruses. This makes them a versatile option for various environments, providing both filtration and purification in one unit.

In areas with virus concerns, using a purifier is recommended for safer drinking water. However, combining a microfilter with chemical purifying agents can also ensure comprehensive protection, making your water safe to drink.

Key Features to Look For in a Backpacking Water Filter

Consider several key features when selecting a backpacking water filter to ensure you choose the best option for your needs:

Lifespan is an important factor, as it determines how long the filter will last before needing replacement. For instance, the Sawyer Squeeze has an impressive lifespan of approximately 3,780,000 gallons, making it highly economical over time.

Ease of maintenance is vital for keeping your filter in good working condition. Many modern filters, like the Katadyn BeFree, can be easily disassembled and cleaned without needing tools. Regular maintenance helps extend the filter’s lifespan and ensures optimal performance.

Portability and weight are crucial, especially for ultralight backpackers. Filters that weigh between 7 to 16 ounces, like the Platypus GravityWorks, impact the overall pack weight and ease of transport. Compact filters are easier to carry and manage on the trail.

Compatibility with different water sources enhances usability in the field. Filters that connect directly to various water bottles, such as the LifeStraw Peak Series, offer convenience and flexibility. This feature is particularly useful when you need to filter water from multiple sources.

Lastly, consider the filter’s flow rate and capacity. High flow rates, like the 2.0 liters per minute of the Katadyn BeFree, allow for quick water collection, making it efficient for solo use or small groups. High-capacity filters, like the MSR AutoFlow XL 10, are ideal for extended trips and group camping.

Tips for Maintaining Your Water Filter

Proper maintenance ensures your backpacking water filter remains effective and reliable. Here are some tips to keep your filter in top condition:

Routine backflushing maintains optimal flow rates, especially after filtering turbid water. Many filters, like the Sawyer Squeeze, come with an inclusive backflushing system for easy cleaning. This helps prevent clogging and extends the filter’s lifespan.

Periodic disinfection prevents bacterial growth inside the filter element. This can be done by using a mild bleach solution or other disinfectants recommended by the manufacturer. Regular disinfection ensures the filter continues to provide safe drinking water.

Filtering the cleanest possible water can significantly extend the filter’s lifespan. Avoiding murky or sediment-laden water reduces the risk of clogging and maintains the filter’s efficiency. In cases where clean water isn’t available, prefiltering can help remove larger particles.

In freezing conditions, it’s essential to protect your filter from freezing, which could cause damage or impair its function. Storing the filter in a warm place overnight, like inside your sleeping bag, can help prevent freezing.

Regular replacement of the filter cartridge and seals is important to maintain the filter’s integrity and effectiveness. Following the manufacturer’s recommendations for replacement intervals ensures your filter remains in good working condition.

Backup Methods and Safety Precautions

Reliable backup water treatment methods are crucial for backpackers to ensure safety against potential waterborne illnesses. Here are some effective backup methods and safety precautions:

Chemical treatments like Aquamira or Aquatabs are recommended as backup options for longer treks. These treatments are lightweight, easy to carry, and effective against bacteria, protozoa, and viruses. They provide an additional layer of protection when your primary filter fails or clogs.

Boiling water serves as another effective backup treatment method. Boiling for one minute can eliminate pathogens, while three minutes is recommended at higher altitudes. This method is reliable but requires a heat source and fuel, which may not always be available.

A backup filtration method, such as a straw filter or another small filter, can complement your primary system. This ensures you have a secondary option in case of clogging or other issues with your main filter.

Avoiding freezing conditions is essential for maintaining your filter’s functionality. Store filters properly and always read treatment directions to maximize effectiveness. Freezing can damage the filter elements, rendering them ineffective.

Camp at least 200 feet away from water sources to minimize contamination risks from human or animal waste. After heavy rainfall, wait before collecting water as bacterial levels can spike in source water. Using a prefilter can enhance water clarity and reduce the chances of clogging filters during treatment.

Verdict: The Best Backpacking Water Filter

After evaluating the top 10 backpacking water filters of 2024, two products stand out as the best choices for different needs.

The Sawyer Squeeze is highly regarded for its lightweight design, versatility, and fast flow rate, making it the best overall filter.

It can filter one liter of water in just 40 seconds and is suitable for various outdoor activities. Its portability and ease of use make it an excellent choice for solo hikers and multi-day excursions.

For group camping and high-capacity needs, the Platypus GravityWorks is the top choice.

Its gravity-fed system can treat up to 8 liters of water swiftly with minimal effort, making it perfect for large groups. The quick setup and efficient filtration make it an invaluable tool for group settings.

When selecting a backpacking water filter, consider factors such as weight, flow rate, intended use, and ease of maintenance.

Lightweight filters like the Katadyn BeFree are ideal for ultralight backpacking, while high-capacity options like the MSR AutoFlow XL 10 are better suited for extended trips.

Proper maintenance is essential to keep your filter in good working condition. Regular backflushing, disinfection, and using clean water for filtering can significantly extend the filter’s lifespan.

Having reliable backup methods, such as chemical treatments and boiling water, ensures you always have access to safe drinking water.

The best backpacking water filter is ultimately the one that meets your specific needs and preferences.

By considering the factors mentioned in this guide, you can make an informed choice and enjoy safe, clean water on all your outdoor adventures.

Frequently Asked Questions

Do you need a water filter for backpacking?
Yes, a water filter is essential for backpacking to ensure you have access to safe drinking water. Natural water sources can contain harmful pathogens, making filtration or purification necessary to avoid waterborne illnesses.
What water filter do Thru hikers use?
Thru hikers often use lightweight and efficient filters like the Sawyer Squeeze due to its fast flow rate and portability. Its versatility makes it a popular choice for long-distance hiking.
Do backpacking water filters remove chemicals?
Most backpacking water filters do not remove chemicals. However, some filters, like the Grayl GeoPress, are designed to remove chemicals, heavy metals, and other contaminants, providing comprehensive purification.
How do hikers purify water?
Hikers purify water using various methods, including mechanical filtration, chemical treatments, and boiling. Mechanical filters remove bacteria and protozoa, while chemical treatments target a broader range of pathogens, including viruses.
Can water filters be damaged by freezing temperatures?
Yes, water filters can be damaged by freezing temperatures. Freezing can cause the filter elements to crack or break, rendering the filter ineffective. It’s important to protect your filter from freezing conditions by storing it in a warm place, such as inside your sleeping bag.
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