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MSR Guardian Purifier Pump - Moosejaw
 
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MSR Guardian Purifier Pump

MSR Guardian Purifier Pump is rated 4.4 out of 5 by 215.
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The MSR Guardian Purifier Pump is a water purifier for clean drinking water in the backcountry, traveling and emergency kits. Think of it as your own personal kitchen faucet, if your water always went directly into a bottle or other handy container first. The Advanced Hollow Fiber filter provides a 2.5L per minute flow, so that delicious water will quickly be able to quench your parched mouth, minus those pesky viruses, bacteria, or other harmful gunk. The self-cleaning cartridge has a life of 10,000+ liters, grab your calendar and schedule in plenty of time for the backcountry.

Product Description
Item No.   10304112

The MSR Guardian Purifier Pump is a water purifier for clean drinking water in the backcountry, traveling and emergency kits. Think of it as your own personal kitchen faucet, if your water always went directly into a bottle or other handy container first. The Advanced Hollow Fiber filter provides a 2.5L per minute flow, so that delicious water will quickly be able to quench your parched mouth, minus those pesky viruses, bacteria, or other harmful gunk. The self-cleaning cartridge has a life of 10,000+ liters, grab your calendar and schedule in plenty of time for the backcountry.

Award Winner

FEATURES of the MSR Guardian Purifier Pump

  • Stores easily
  • Reliability on long trips
  • Physically removes viruses, bacteria, protozoa, and silt in one easy step
  • Treats up to 10,000 liters
  • Built to withstand freezing temperatures as well as drops from up to 6 feet
  • Revolutionary self-cleaning performance means never back flushing again
  • Ultimate Protection: Meets NSF protocol P248, testing standard used by U.S. military, for removal of viruses, bacteria, protozoa, and sediment from "worst-case" water conditions
  • Fast and Easy: Pumps a rapid 2.5 liter per minute, offering added viral protection without the need for chemicals, bulbs, batteries, or waiting
  • Extremely Durable: Engineered to withstand heavy use, freezing, drops, and harsh environments
  • Nothing is safer or easier to use for purifying the most demanding backcountry water sources than the Guardian purifier
  • Originally designed for military squads, it brings this highly advanced technology to global travelers, backcountry users, and those stocking emergency kits
  • Fast and easy to use, this pump purifier offers the added viral protection you need when traveling in developing nations and popular wilderness areas
  • Its advanced hollow fiber filter offers the most reliable way to purify even filthy water conditions

Product Specifications
Features: Self-Cleaning, Made in USA
Weight: 17.3 oz
Cartridge / Cycle Life: 10,000 liters
Filter Rate: 2.5 liters / minute
Length: 8.2 in.
Awards: OutDoor Industry Telegraph - 2016, OutDoor Industry Gold Award Winner - 2015, National Geographic Adventure Gear of the Year Award - 2015, Editors Choice Summer - 2016, Backpacker Magazine Editors' Choice Award - 2016, Gear Institute Best New Gear Outdoor Retailer Summer - 2015, Gear Of The Year - 2015, Outside Gear of The Show Award - 2016, Outdoor Retailer Best of Show Award - 2015, Innovation Award Winner Outdoor Retailer Summer - 2015, Outside Magazine Gear of the Year Award - 2016, Gear Junkie Best In Show Outdoor Retailer Summer Award - 2015
Disclaimer: We only ship this brand to US Addresses.
Best Use: Travel, Basecamp and Expedition, Camping
Effective Against: Protozoa, Bacteria and Viruses
Filter Type: Pump
Product Reviews
Rated 5 out of 5 by from Incredible Filter! We hike and multi-day camp a lot, and this filter allows us to cut our pack weight in half by carrying 1 bottle/person. With 4 small kids, stomach issues cannot be an issue in the backcountry, but with the Guarduan, we feel confident pumping from the grossest lakes and foot-trafficked streams: water is always clean, clear and crisp. Incredibly fast and consistent.
Date published: 2017-08-17
Rated 5 out of 5 by from Drank outta the Green River and didn't die I ordered this so our Trail Life boys and dads would have clean water to drink on a 4 day/3 night canoe adventure on the Green River. The Green River is called the Green River because it's green. Very inventive, I know. And if you choose to dip your noggin' in the water of the Green River and open your eyes, you will not see more than 4 or 5 inches. It's green. It's nasty. I choose not to think about it. This pump was our answer to getting clean water to drink for these 4 days. It arrived (and BTW, MooseJaw worked with me to update the shipping address to our base camp so we'd have it in time). We took the pump out of the box, dropped it in the water and started pumping. Pet Rocks are the only thing I can think of that has easier Quick-Start steps. I love the design of the flat foam pad that forces the intake pre-filter to stay under the surface of the water. AND I also really appreciate the 'flush' tube running along side of the in-take tube. This really is an ingenious piece of engineering.
Date published: 2022-06-26
Rated 1 out of 5 by from do not use! I've been using MSR gear for over 35 years. they make amazing products. that being said this filters should not be in their lineup! very poor design and not durable at at all! for the price this thing should bomb proof and its nowhere near that capability. I would not recommend using this filter over seas with out having a back up that has a proven track record. I hate giving them a one star on this, but I can't in good faith recommend this filter to anyone. sorry MSR
Date published: 2022-04-26
Rated 3 out of 5 by from almost but not quite get a Berkley filter in there and this product would be golden with most water sources nowadays having a farmer or chemical run-off but if its coming rate from no man's land this is perfect for travelers or deep country mountaineering but if I was going to spend that much on this I rather go with a product that has the testing done
Date published: 2021-12-30
Rated 5 out of 5 by from Works great Bought for overseas travel with family and friends. Used it for two weeks in Peru camping and tap water with zero issues. Also used it in sketchy Mexican hotels with tap water.
Date published: 2021-11-12
Rated 5 out of 5 by from Amazing water filter This filter IS amazing. If it can filter Colorado River water at the river’s muddiest flow (it can), it can filter any water you’re likely to encounter. I have destroyed many normal filters on Grand Canyon hikes along the Colorado. The Guardian just chugs on. It has easily supplied water for 6 people from the Colorado for many days. You need to maintain it, of course, but the thing works. It’s on the heavy side, but if you’re sharing weight with co-hikers, it makes a lot of sense for groups of 3 or more (I think). Certainly it makes sense if you’re unsure about the available water. And I should add, it also filters out viruses. Few other filters do this. One suggestion to the MSR employees who read this. You should offer a hose with a Platypus water bag connection that attaches to the Guardian’s “nipple”. It’s much easier to pump water into a Platypus bag with the Guardian than to attach a Nalgene bottles to the pump itself, which effectively makes the pump feel heavier as you fill the bottle. Better to let the ground bear the water weight. It also gives you more freedom with the pump, since it’s also effectively smaller without a Nalgene bottle screwed into it. And if you must have a Nalgene, that bottle can be filled with a hose too.
Date published: 2021-11-05
Rated 2 out of 5 by from Great pump but MSR will not stand behind their product This pump works great once you know the trick to screw off the base about a 1/4" so that it doesn't leak everywhere. For the money I expected a pump that was designed and manufactured correctly. But what I got was one that wasn't. I called their support line and got the run around. They completely knew about the issue and having to loosen the base so that it would seal. An obvious flaw, but would do nothing to correct the issue. It is a shame since it is such a good pump.
Date published: 2021-10-19
Rated 1 out of 5 by from Not reliable. Poor plastic breaks Very very angry and surprised that some elementary plastic part simply broke. Water is critical to life. MSR handles this way too lightly.
Date published: 2021-09-12
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For the MSR Guardian; are spare parts/components available? Or is a second unit the best "spare"? 

Asked by: iceman01
Hey there, Thanks for reaching out to us! Your best bet if you're seeking spare parts would be to contact MSR directly at: 206-505-9500.
Answered by: Rocko Gigsby
Date published: 2018-12-10

I didn't see any information on whether the filter could be changed, or if there were any indicators on when it needed changed. Looks awesome, definitely considering the purchase.

Asked by: Mike
Hey there, Thanks for the question. The filter cartridge on this item can be replaced/changed. You typically will know to change it when the flow rate drops to less than 1L a minute when pumping 70 strokes per minute. The filter will still be purifying water, but as the flow rate drops with use more wear appears on the internal parts. I hope this helps.
Answered by: Rocko Gigsby
Date published: 2022-06-27

Will this convert salt water?

Asked by: Duke
No, this is simply a filter which does not remove chemicals, toxins, or heavy metals. It is effective down to 0.02µm (microns). (Technical info from the MSR website). If you're looking for a portable, hand operated desalinator, check out Katadyn.
Answered by: Dane
Date published: 2020-06-14

Does this only screw on to wide mouth bottles?

Asked by: rotsfactor4
Hey there, Thanks for reaching out to us! The pump does not adjust in size and can only screw on wide mouth bottles.
Answered by: Rocko Gigsby
Date published: 2016-09-05

Have you upgraded this unit, by fixing the design flaws yet ?.... If not, why would anyone invest a unit which under NORMAL use would leave someone stranded without fresh water...

Asked by: Jack 1966
Thanks for the question! This is the Spring 2019 model and as far and I know, there have not been any updates. If you purchase and find this Purifier Pump gives you any issues, we do offer a Lifetime Return Policy.
Answered by: Foxxy Cleopatra
Date published: 2020-05-17

Can the filter be cleaned and reused or does it have to be replaced?

Asked by: JNS1
Hey there, thanks for your question. The true elegance of the MSR Guardian Purifier Pump is that its a completely self cleaning non chemical filter. The fibers in the filter have tiny holes, too small for even a virus to fit through, the only thing that passes is clean water. Check out the video below at about 4min 45sec, they show it being used to pull water out of a puddle full of cow plops, it shows the prefilter in action as well as a pretty cool display of the ugly brown water coming back out of the filter with crystal clear water still being pumped. The only time you need to replace your filter would be if it physically broke, or after 10,000 liters just because enough is enough and it's time for the poor thing to have a rest. I hope this helps!
Answered by: Gator
Date published: 2022-03-28

Is the price correct on this filter? $349.95?

Asked by: Rafi
Hey there, Thanks for reaching out to us! Listen....if you EVER want to pay more for ANY item we carry....you just let me know, k? I'll be more than happy to make that happen. We'll set up a system. Just you and me, buddy. Pals for life! But, as for this item, it is in fact $349.95. Hope this helps you out!
Answered by: Rocko Gigsby
Date published: 2021-06-12
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