Water Treatment

The best water treatment, reviewed and curated by the Trailspace community. The latest review was added on April 25, 2019. Stores' prices and availability are updated daily.

Need help getting started? Read our four-part guide to backcountry water treatment:
Part 1: Proper Hydration
Part 2: Keeping Your Water Supply Safe
Part 3: What’s in Backcountry Water?
Part 4: Methods for Making Water Safe

Recent Water Treatment Product Reviews

LifeStraw Original

rated 5 of 5 stars Great filtration! Easy to use!! Packable! Would recommend for the hiker, hunter & explorer!  Easy to use & dependable! Full review

SteriPEN Classic UV Water Purifier

rated 5 of 5 stars SteriPEN is an excellent handy tool for the right applications. Extremely easy to use, easy to carry, fits in a small pocket or attaches to one's belt or backpack strap, and can be used when out camping, but also in a restaurant in a cup of water, and in many water bottles, one can turn the bottle upside down, with the pen acting as a plug, while doing sterilization. It appears to have been developed for military application, to my memory, and that's a pretty good recommendation as to efficacy. … Full review

LifeStraw Go

rated 4.5 of 5 stars I used this when i was out there for three days. No issues, as long as I found water to fill it! Never got sick, although it didn't make the clean water all taste awesome. It works, stayed in one piece well, sealed well, didn't shatter when I fell on it. Full review

CamelBak All Clear

rated 5 of 5 stars I lived in Mexico in a town that got its water from a lake. The water was not safe to drink so I used the Camelbak All Clear. I never got sick. I also use a Katadyn Pocket Filter when I need to get rid of all the solids. I have traveled to Mexico and Peru where the water quality is less than superb. If you drink the water that is untreated, you will get Montezuma's Revenge. I also have a carrier for the bottle. I am glad I bought this unit as it sure saved me a lot of running to the bathroom. Full review

Aquamira Water Treatment Drops

rated 5 of 5 stars Funny, used to always boil water, iodine, then got a pump and replaced with another pump, and got turned on to this by a Triple Crowner. Been using for the last ten years and no problems, which I consider not just luck. Buy a new set each year. Makes a lot of potable water for its size. I wish we had this product when I was in the army, often had to drink some really nasty stuff in the jungles, we were issued iodine tabs back then and I've seen several really sick troops after a few weeks in the… Full review

MSR Guardian Purifier

rated 4.5 of 5 stars It's a very high quality portable hand purifier, with a high level of filtration (small enough for viruses) and has fast flow rate, as it pumps very quickly. It also has a long lasting filter and is the only portable hand purifier that is truly freeze resistant. Best for backcountry camping in remote areas, especially if the water is very unsanitary. Would definitely recommend and is well worth the price. MSR has made some bold claims on what this product is capable of and as far as I can see the… Full review

Grayl Ultralight

rated 5 of 5 stars I purchased this water filtration bottle primarily to take canoeing, for day trips and canoe camping outings. It is small, easy to carry, and can provide clean drinking water in a short period of time. It is really tough to use in the canoe, due to pressure needed, but a quick stop off at shore and I can get clean water quickly. It is also handy to use when hiking, as it fits nicely into backpack bottle pockets.                                Packaging as I purchased… Full review

Katadyn Gravity BeFree 3.0L

rated 5 of 5 stars I wanted a filtration system that was easier to use than the Sawyer. I found it. This system is super fast and easy. I used it on a weekend backpacking trip on the Appalachian Trail and could not be more pleased with it. While the filter doesn't filter as much water as the Sawyer (you can filter about 1,000 liters before you need to replace the filter), the trade out is there is no backflushing necessary and it's much faster to fill the reservoir because the opening is bigger than the Sawyer (43… Full review

MSR SweetWater Siltstopper

rated 4 of 5 stars Adds a pre-filter to virtually any water filtration system. I have an MSR Miniworks EX, and I use the Siltstopper on the intake hose for extra efficiency. It provides a much longer run time between cleanings for the main filter itself. Without the MSR Siltstopper, I would have to tear down and scrub the MiniWorks cartridge about every 3-5 Litres, but with the SiltStopper prefilter, I can go practically a week before needing to scrub the main filter cartridge. Less scrubbing on the main filter means… Full review

user rating: 5 of 5 (6)
Platypus GravityWorks Filter System 2L Pump/Gravity Filter
$68 - $109
user rating: 5 of 5 (6)
MSR Guardian Purifier Purifier
$262 - $349
user rating: 5 of 5 (4)
Katadyn Combi Pump/Gravity Filter
$176 - $219
user rating: 4.5 of 5 (26)
Sawyer MINI Bottle/Inline Filter
$20 - $99
user rating: 4.5 of 5 (19)
Platypus GravityWorks Filter System 4L Pump/Gravity Filter
$83 - $119
user rating: 4.5 of 5 (15)
Katadyn Pocket Pump/Gravity Filter
$296 - $369
user rating: 4.5 of 5 (9)
Aquamira Water Treatment Drops Chemical Treatment
$14 - $16
user rating: 5 of 5 (2)
Grayl Ultralight Purifier
$60
user rating: 5 of 5 (2)
LifeStraw Go Bottle/Inline Filter
$40 - $49
user rating: 5 of 5 (2)
Sawyer PointOne Filter with Bucket Adapter Bottle/Inline Filter
$49 - $59
user rating: 4.5 of 5 (6)
Katadyn Micropur MP1 Purification Tablets Chemical Treatment
$10 - $14
user rating: 4.5 of 5 (5)
MSR Autoflow Gravity Filter Pump/Gravity Filter
$71 - $109
user rating: 4.5 of 5 (5)
Katadyn BeFree 0.6L Bottle/Inline Filter
$27 - $47
user rating: 5 of 5 (1)
LifeStraw Original Bottle/Inline Filter
$20 - $24
user rating: 5 of 5 (1)
Katadyn Gravity Camp 6L Pump/Gravity Filter
$72 - $89
user rating: 5 of 5 (1)
Katadyn Exstream/MyBottle Virustat Kit Accessory
$35
user rating: 5 of 5 (1)
Katadyn Gravity BeFree 3.0L Pump/Gravity Filter
$55 - $69
user rating: 4 of 5 (51)
Katadyn Hiker PRO Pump/Gravity Filter
$59 - $84
user rating: 4 of 5 (32)
Sawyer Squeeze Pump/Gravity Filter
$40 - $59
user rating: 4 of 5 (29)
Katadyn Hiker Pump/Gravity Filter
$56 - $74
user rating: 4 of 5 (26)
SteriPEN Classic UV Water Purifier Purifier
$70
user rating: 4 of 5 (9)
SteriPEN Adventurer Opti Purifier
$80 - $99
user rating: 4.5 of 5 (1)
Katadyn Carbon Cartridge Accessory
$20
user rating: 4.5 of 5 (1)
Potable Aqua Iodine and Taste-Neutralizer Tablets Chemical Treatment
$12
user rating: 4.5 of 5 (1)
Potable Aqua Water Purification Tablets with P.A. Plus Chemical Treatment
$13
user rating: 4 of 5 (2)
Sawyer Water Filter Squeeze Pouch Accessory
$8 - $9
user rating: 4 of 5 (2)
Sawyer Select S1 Bottle/Inline Filter
$30 - $59
user rating: 4 of 5 (1)
Vapur MicroFilter Bottle/Inline Filter
$35
user rating: 4 of 5 (1)
Platypus Meta Bottle + Microfilter Purifier
$30 - $49
user rating: 4 of 5 (1)
Potable Aqua Pure Purifier
$100 - $119
user rating: 4 of 5 (1)
Katadyn Hiker/Hiker PRO/Base Camp Replacement Element Accessory
$40 - $49
user rating: 3.5 of 5 (42)
MSR MiniWorks EX Pump/Gravity Filter
$67 - $99
user rating: 3.5 of 5 (30)
Katadyn Vario Microfilter Pump/Gravity Filter
$10 - $94
user rating: 3.5 of 5 (23)
Katadyn Base Camp Pump/Gravity Filter
$70
user rating: 3.5 of 5 (16)
MSR HyperFlow Microfilter Pump/Gravity Filter
$75 - $99
user rating: 3.5 of 5 (4)
MSR MiniWorks Pump/Gravity Filter
$40
user rating: 3.5 of 5 (1)
Potable Aqua Chlorine Dioxide Water Purification Tablets Chemical Treatment
$12
user rating: 3.5 of 5 (1)
MSR Trail Base Water Filter Kit Pump/Gravity Filter
$105 - $149
user rating: 3.5 of 5 (1)
SteriPEN Ultra UV Water Purifier Purifier
$88 - $109
user rating: 3.5 of 5 (1)
SteriPEN Classic 3 UV Water Purifier Purifier
$64 - $79
user rating: 3 of 5 (10)
LifeSaver Bottle Bottle/Inline Filter
$165
user rating: 3 of 5 (3)
LifeSaver Jerrycan Pump/Gravity Filter
$195 - $349
user rating: 3 of 5 (2)
Katadyn Drip Gravidyn Pump/Gravity Filter
$206 - $294
user rating: 3 of 5 (2)
MSR SweetWater Siltstopper Accessory
$14 - $16
user rating: 3 of 5 (1)
Sawyer Select S2 Bottle/Inline Filter
$80
user rating: 3 of 5 (1)
Potable Aqua Water Purification Tablets Chemical Treatment
$9
user rating: 2.5 of 5 (2)
LifeStraw Mission Gravity Water Purifier Pump/Gravity Filter
$130 - $144
user rating: 2 of 5 (4)
Katadyn Mini Pump/Gravity Filter
$110
NEW!
MSR AutoFlow XL Pump/Gravity Filter
$100
MSR TrailShot Microfilter Pump/Gravity Filter
$37 - $49
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