MSR Guardian Purifier Pump
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MSR Guardian Purifier Pump

MSR Guardian Purifier Pump is rated 4.6 out of 5 by 70.
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4.5 Star Rating
4.5
$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
Features: Made in USA, Self-Cleaning
Weight: 17.3 oz
Cartridge / Cycle Life: 10,000 liters
Filter Rate: 2.5 liters / minute
Length: 8.2 in.
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, Outside Magazine Gear of the Year Award - 2016, National Geographic Adventure Gear of the Year 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
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 4 out of 5 by from Great purifier, but the handle broke right at 1 year I've been full time truck camping for the past 2.5 years in Colorado and was annoyed with gravity filtration systems that take forever to process water. I wanted a solution where I could safely process large quantities of water in a short amount of time. Enter the Guardian - I REALLY liked this high volume water purifier. It jams through water in no time and is easy to use. My only complaint is the small plastic loop piece that attaches the handle to the purifier pump broke right at 12 months so I can no longer purify water. I thought "No problem, I'll just go back to Cabela's where I purchased this purifier and exchange it for a new one." Unfortunately Cabela's changed their return and receipt policy where they no longer keep purchases stored in the system and I couldn't get my original receipt reprinted in order for me to send proof of purchase to MSR so I couldn't get a replacement...frustrating. So although I really did love this purifier, I feel as though the handle should last for more than 12 months since the cost is upwards of $350.
Date published: 2017-10-29
Rated 5 out of 5 by from The best!! We got this over the summer and have used it a couple times now. We love it! It’s small, easy to pack and the quality of it gives us peace of mind no matter where we’re getting our water from.
Date published: 2017-10-28
Rated 5 out of 5 by from Making life easy in the Khumbu I used the Guardian during a 17 day trek in the Mt. Everest region on Nepal. This area is notorious for making people ill from water born issues. The filter worked flawlessly! It is very fast and easy to use. The auto cleaning feature allowed us to filter that grey glacier melt without ever getting clogged. The most interesting feature we noted is that we could simply hold the filter intake in the flow from a faucet or pipe and the pump was powerful enough to suck water through the filter - no need to fill a sink or basin. The Guardian isn't super light and it is expensive but it is amazing and will keep your water safe in the most severe conditions!
Date published: 2017-10-21
Rated 5 out of 5 by from Initial Test - Passed With Flying Colors My first experience with this filter exceeded expectations. I took it on a hike and found a stream I wouldn't think of drinking from unless it was an emergency. The water I filtered was nasty at the source but once I filtered it through the Guardian it was clear as crystal. Not only that it tasted like fresh well or bottled water. I heard the claims and now I believe them. Five of us drank water filtered from the same source and no one had any ill effects.
Date published: 2017-10-18
Rated 5 out of 5 by from A must have for go bag or for large groups Great product to have since it eases the mind of worried Scout Parents that their Scouts will have safe drinking water while hiking in Back country when their silly Straws clog.
Date published: 2017-10-10
Rated 5 out of 5 by from Reliable Water My wife and I decided to ride the Great Divide Mountain Bike Route this year (2017). It took us 4.5 months to prepare and specify the bikes, bike packing bags and equipment. One of the last items on our list was a water filter system. We researched and it looked as though a simple (and inexpensive) filtration system would be all that would be needed. I then saw the MSR Guardian video. That video alone convinced me that this probably is the best choice, even though it was very expensive. The concept of filtering water versus purifying it needs to be fully understood, before anyone makes a choice. We ended up buying the Guardian. Fast forward to the Divide: We did not realize how much water we actually needed to purify along the route. It ended up being a lot more than we anticipated. Thank goodness we had the Guardian. The ease of use and the confidence in drinking water fit for human consumption cannot be underestimated. Even after the first time we used it, it was worth every penny. We ended up using it at least a dozen times along the route (even though we only made it 2,080 miles of the 2,750 mile trip due to wildfires and inclement weather). Check out other people's actual experiences with this well-engineered device. If one uses it properly it works as promised! Jeff & Lori Arita
Date published: 2017-09-26
Rated 5 out of 5 by from Unbelievable Quality Excellent for traveling and camping. Must carry item when traveling to third world countries. Its awful to see everyone purchasing bottled water and discarding plastic. Besides, water quality from guardian is unmatched
Date published: 2017-09-22
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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: 2017-10-01

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: 2017-10-01
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