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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 220.
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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, Editors Choice Summer - 2016, National Geographic Adventure Gear of the Year Award - 2015, 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 Great…BUT 1st the bad: the articulation from the handle to the piston breaks. I’ve had this fail twice. First on a long thru hike, fortunately at the end. Got in touch with MSR and they replaced it, kindly giving me a backup. Now backup broke, but I’m sure they’ll stand by it again. Guys, is this being redesigned? The good: this thing works like a beast. I pump everyone’s water, it’s fast, never slows, no one gets sick. It’s the bomb, worth the weight. Suggestion: 1- fix the piston problem (breakage). 2- include a tube to connect to nipple outflow on bottom of unit. It’s so fast, you spend an inordinate amount of time screwing Nalgene bottles onto the backside. We had to hunt for a hose, found one, real time-saver, but ought to be included. 3. Create modification for pump to be used as a hanger (like the bag-flow) as an option. …if possible. Keep up good work MSR, some tweaks on the one bad part needed, but overall worth the $ and great product.
Date published: 2022-11-20
Rated 1 out of 5 by from MSR guardian Todays date 9/28/2022. Was GOING to contact MSR about the low reviews on this product to see if they’ve made changes to the product or done anything about it… I see 2 reviews within the last 2 months that are saying they’ve experienced the same faults I’ve been seeing by other reviewers… the way they boast this products award is down right disgusting. People put their life on this product to work… If anyone has died from trusting this product, I’d spend good money on a lawyer and sue these adult children for every penny they have. DECISION HAS BEEN MADE, NOT BUYING
Date published: 2022-09-28
Rated 5 out of 5 by from Andrew I appreciate the filter speed and filtration. I think that all the people complaining about their broken filters are ungrateful. I’d bet they never went on a 30 mile out and back with 6k vert. The unit is light for what it is. This is an excellent design. They designed a lightweight product that works when perfectly when used correctly. There is a notch between the bottom rubber grip and the frosted main body of the filter. Tighten the grip to the main body until you reach an obvious notch. Then tighten the bottle onto the filter without touching the frosted plastic. It will work flawlessly.
Date published: 2022-09-23
Rated 5 out of 5 by from STOP This works ..prime the filter and enjoy..so now you require people just say random crapt to get to the number of letters I strongly suggest you change ..stupid
Date published: 2022-09-15
Rated 5 out of 5 by from Never had an issue. Had the filter for a bit over 3 years. Not a single problem, no issues with pump, pre filter, main filter. Made a plug and play system to refill my bladders while still in the packs, Couldn't be happier with the filter and over all system, only issue I have had is the foam on the pre filter causing the feed and flush lines to come out of quick moving water, not much a rock holding the line down couldn't fix.
Date published: 2022-08-25
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
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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: 2022-06-27
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