MSR Guardian Purifier Pump
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MSR Guardian Purifier Pump

MSR Guardian Purifier Pump is rated 4.6 out of 5 by 57.
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4.6 Star Rating
4.6
$349.95

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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.

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
Awards: Outside Gear Of The Show - 2016, Gear Of The Year - 2015, OutDoor Industry Telegraph - 2016, Editors Choice Summer - 2016, Backpacker Magazine Editors' Choice Award - 2016, OutDoor Industry Gold Award Winner - 2015, Innovation Award Winner Outdoor Retailer Summer - 2015, Outdoor Retailer Best of Show Award - 2015, Gear Institute Best New Gear Outdoor Retailer Summer - 2015, Gear Junkie Best In Show Outdoor Retailer Summer Award - 2015, National Geographic Adventure Gear of the Year Award - 2015, Outside Magazine Gear of the Year Award - 2016
Disclaimer: We only ship this brand to US Addresses.
Filter Rate: 2.5 liters / minute
Weight: 17.3 oz
Length: 8.2 in.
Features: Self-Cleaning, Made in USA
Cartridge / Cycle Life: 10,000 liters
Best Use: Travel, Basecamp and Expedition, Camping
Effective Against: Protozoa, Bacteria and Viruses
Filter Type: Pump
Rated 5 out of 5 by from Excellent Expensive, but worth it. Durable, quick working, easy to pump, cleans everything.
Date published: 2017-07-03
Rated 2 out of 5 by from Fast and easy to pump. Bad water taste persists. After many liters pumped, a distinct "pool water" taste persists. If this continues, and cannot be remedied, I'll return it. Love the bottle/dromedary compatibility (main reason for purchase).
Date published: 2017-07-02
Rated 5 out of 5 by from Well, there is nothing better out there yet. Well, there is nothing better out there yet.
Date published: 2017-06-12
Rated 5 out of 5 by from 5 STAR--Awesome water filter I have several MSR water filters, the sweetwater, the hyperflow, the Miniworks EX, and now the Guardian. this one by far is the best of them all. used it for the first time this past weekend on a boy scout float trip on the Caddo River. Filtered water tasted awesome, but more importantly, was the ease of use and speed of the guardian flow rate. we actually timed how long to fill 1 lt. to compare the advertised rate. 25 sec for a 1 lt. bottle in silty water, WOW! it is a little bigger and heavier, but this will be my go to filter from now on. My only suggestion would be to add an additional threading or reducer, to accommodate small mouth water bottles on the discharge side of filter. like the one provided on my sweetwater clean side bottle adapter
Date published: 2017-06-05
Rated 5 out of 5 by from This is amazing! I bought the Guardian for a four day rafting trip on the Owyhee River last month. It filtered water for 6 people for the duration of the trip. The river water was brown and murky, but the water we drank was delicious and crystal clear! It was easy to use and we could fill up approximately 10 water bottles and our 4L dromedary bag in about 10-15 minutes! Easy to use and so glad I have it!
Date published: 2017-05-27
Rated 5 out of 5 by from 7 days on Isle Royale.... flawless Used for a weeklong backpacking trip, end to end on IR. Worked flawlessly in standing inland lakes, flowing and shallow trickling streams. Auto backwash is excellent. Packs well. Not sure how it can be improved!
Date published: 2017-05-14
Rated 5 out of 5 by from This is hands down the best water filter on the market Such an easy filter to use and gets rid of viruses. Thanks MSR!
Date published: 2017-05-07
Rated 5 out of 5 by from I love this thing..... This thing is the best tool I own. This purifier is so much faster and easier to maintain then my water filter. It does everything I would and awesome product made by MSR to do. I own a lot of MSR poduct and can contest to the durability, ease of use and portability. My guardian will always be attached to my side.. and to those who give a bad review do to a stupid sticker made to put on by law in California need to do your research before making a negative review on a noncarcinogenic product.
Date published: 2017-04-07
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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: 2016-09-05

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: 2016-11-13

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: 2016-12-04

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

Where can the spare filters be bought & about how much do they cost?

Asked by: Hanko
Hey lugnut!! Look on page 2 & you will find the replacement filters! DUH!
Answered by: Hanko Jr
Date published: 2016-09-07

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: 2017-04-16
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