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Sawyer Products SP122 3-Way Inline Water Filter

4.6 out of 5 stars 109 customer reviews
| 22 answered questions

List Price: $59.99
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  • 0.1 Micron absolute hollow fiber membrane inline filter
  • Removes 99.99999% of all bacteria, such as salmonella, cholera, and E.coli; removes 99.9999% of all protozoa, such as giardia and cryptosporidium
  • Housing material made from food grade ABS plastic is light in weight at 3 ounces dry and easily field maintainable
  • No residual chemical tastes
  • Backed by a manufacturer's limited lifetime warranty
2 new from $54.99 1 used from $38.34
$54.99 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

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Technical Details

Product Description

Use the Sawyer lightweight 3-way inline filter water treatment system to filter water directly from a river, lake or stream along the trail or from other non potable sources. Works great as a hydration pack reservoir filter for long hikes where the water source is in quesion. You can even just attach it to a household faucet filter. For Hydration packs, insert the filter inline with the drinking tube, then simply fill your reservoir with unfiltered water and drink away. As long as the filter is inline on your hydration pack you don’t need to worry about cleaning the reservoir. You can also attach a drink tube of your choice (sold separately) to the filter, then submerge the filter into dirty water and drink directly from the source. This is a great alternative to carrying potable water long distances or while out canoeing, kayaking, backpacking, or travelling abroad. Filter cartridge measures 1.75 x 3.5 inches. Since 1984, Sawyer Products has offered the best, most technologically advanced solutions for protection against sun, bugs, water, and injuries - everything from first aid kits developed for wilderness to point-of-use water filters that filter contaminated water to levels cleaner than U.S. bottled water.

Product Details

  • Product Dimensions: 4 x 4.2 x 5 inches ; 8 ounces
  • Shipping Weight: 15.2 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B0034VR8ES
  • Item model number: SP122
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (109 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By E. Mish on April 17, 2012
Verified Purchase
A couple months back I decided I would finally purchase myself a water filter system for those days that I forget water.. Or I decide to go camping where fresh water is not an option.. As in backpacking into some of the 1,000,000+ acres of state forest land that is found here in southeastern Minnesota..

After looking at many different options... MSR.. .Katadyn... Aquamira... I decided to go with the Sawyer 3-way Inline Water Filter.. I chose it based on reviews I found on-line.. And unlike the different pump systems out there that could(and have from reviews) break down.. I went with what seemed simple enough... Connect to hydration pack and sip.. I also liked the idea that this water filter could be used in many different ways.. From a simple straw system where you connect the tubes and dip directly into the water source and sip.. Or gravity system where you can fill up your hydration bladder with water.. and allow it to drip down into another container.. ie: water jug/dish tub/nalgene.. Or it can even be connected to a water faucet if you are in an area where you should not drink tap water..

The filter is good and guaranteed for up to 1,000,000 gallons.. How you would keep track of that is beyond me.. But I imagine it's guaranteed for life by that statement. It is equipped with a 0.1 micron absolute hollow fiber membrane filter.. Protects you from 99.99999% bacteria and 99.99999% protozoa and cysts... The filter weights in at a whole 3oz.. So it's definitely light enough for the hardcore backpacker..

So Saturday I finally got to test it out as I had forgotten to fill my hydration bladder before heading to the stream to do some fishing.. So I unhooked my platypus and dipped it in the nice cold stream and filled it up and my thirst was instantly quenched...
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I have two of these and about to invest in the purifier.

Let me say that this is an exceptional filter.
If you've never used an 'in-line' system this is the way to go. There's nothing to replace, wear out and it just keeps working. If it gets clogged up, use the faucet thingy, or just reverse direction and use a bag of mostly clean water in the same bag, roll and squeeze it until you blow out all the gunk then continue filtering.
The flow rate is surprisingly good. In my kitchen just now (using well water) it will empty a 2L Platypus Big-Zip in 2:30. Then I filled a 5 gallon car-boy jug in under 30 min. With a pump you'd only filter what you needed, often neglecting washing water etc. With this system I filter as much as I can then use the hanging bag as a hand-wash and dish wash station!
I found the flow rate is good enough to sip from the straw without too much resistance either from a bag, or dropping the 'dirty end' of the tube into water and drinking directly. In fact, if you set the clean end of the tube downhill and remove the bite-piece and then get it started, it will syphon out of a pool or puddle nicely.
No other filter out there can come close to the "Million Gallon Guarantee" and that's why I chose Sawyer and stuck with them.
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Verified Purchase
This is a lightweight lifesaver! I purchased this, along with a Platypus 3L Big Zip, for a recent Half-Dome hike as well as for an emergency preparedness go-bag. Had to use it a couple times on the Half-Dome hike for a group of six as we were all running out of or low on water on the return hike. I found a couple good faster-flowing areas to fill up along the Merced. I love how this utilizes quick change connectors - very easy to work with. I built an inline carbon filter to supplement the Sawyer (based on this [...]) and it worked out well. I think the carbon filter improved the water taste quality slightly. Either way, the real test was to wait and see if me, my wife, or any of our friends got sick after drinking the water. I haven't heard anything so far!

It was a bit tricky getting this thing going. Maybe the carbon filter contributed to this. I'm going to have to play around with it more - it seems like it required bit of pressure to get the flow started consistently.

That said, it was good that I had the system because almost everyone ran out of water on the way back down. We would have been in trouble but the Sawyer saved the day! Huge thumbs up for this system, and I love how simply back flushing the unit is enough to 'clean' it out sufficiently.

They're also really prompt in responding to emails if you have questions. One important thing to note: NEVER attempt to wash the filter with soap/soapy water - this will destroy the filter.
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I have had this filter for 3 years now. I am section hiking the Appalachian Trail. One problem I always had with pump filters is that it too darn long. Every water stop was a 1/2 hour delay. Consequently I would skip some watering holes and that was a big mistake. I nearly dehydrated more than once. Now with the Sawyer filter in line with my Camelbak bag I simply fill up the Camelbak and continue hiking. It is the best 3 minutes one can spend at a water source. This has added 2-4 miles a day to my hiking.
I suppose even more importantly I have NEVER gotten sick from using this filter. After each trip I simply back flush the filter. Replacing a 1.2 lb water filter with this 2 oz beauty is a fantastic way to trim ounces. In a nutshell...I love it! This along with the hiker hammock and trekking poles are the 3 best items to come along for hikers in some time.
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