PxPixel
MSR Guardian Purifier Pump - Moosejaw
 
Some stuff you should know about that Extra 20% off Clearance Styles promotion:

  • This deal cannot be combined with other offers and cannot be applied to prior purchases.
  • You must enter Code BANANABREAD for the code to work.
  • While supplies last.
  • Works on clearance styles ending in .99.
  • Exclusions may apply.
  • Offer valid through October 1st, 2023.
  • Sorry for being so mean about it.

Exciting rules about the 20% Off One Full-Priced Climbing Item thing:

  • For Moosejaw Rewards members only. New members enroll for free during checkout.
  • You must use code GRAB20 to take the 20% off a full-priced item.
  • The deal is only on in stock items. Deal cannot be applied to prior purchases or with other promotions.
  • Load bearing climbing equipment, like a harness or carabiner, is final sale by law so if you don't like your climbing stuff just hang it on your wall to impress your friends - sorry for being so mean about it.
  • The code is only good through October 1st, 2023.
  • Some exclusions apply.
  • Not all climbing brands are included.

Boring rules about the 25% Off the Best Climbing Gear thing:

  • Not all items are 25% off.
  • Does not apply to all climbing brands.
  • Cannot be applied to previous purchases.
  • Sale runs through October 1st, 2023.
  • Sorry, our lawyer is super crabby today.

FREE Shipping Offers:


Bike Shipping Info and Offers:

  • Get FREE 4-6 Day Ground Shipping on all bike accessory orders over $49.00.
  • Complete bikes will ship 4-6 Day for $4.95
Smoke
Wishlist Icon

MSR Guardian Purifier Pump

MSR Guardian Purifier Pump is rated 4.3 out of 5 by 235.
  • y_2023, m_9, d_27, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.35
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_235
  • loc_en_US, sid_10304112, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_moosejaw
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 21ms
  • REVIEWS, PRODUCT
4.3 Star Rating
4.3
$389.95
OR
+ earn up to $38.99 in Rewards Dollars
Select a Size
Please select a size
Select a Color
Please select a color
Some items available for immediate pickup Select Store
Some items available for immediate pickup Select Store
Special order items take longer to ship

We want to make extra-sure you realize that you've added a special order item to your cart. These items take a little longer to get to you because we have to order from the manufacturer first. The "Est. Ship Date" is the date we expect items to leave our warehouse... so add your chosen shipping speed to see when it will show up at your door.

	{"type":"FeatureCollection","features":[{"geometry":{"type":"Point","coordinates":[-105.255852,40.01889]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Boulder","phone":"(720) 452-2432","storeid":"01","ffmcId":"10064","RBStoreId":"010","Address":"1750 29th Street, Unit 1042, Boulder, CO 80301","AddressLines":{"line1":"1750 29th Street","line2":"Unit 1042","city":"Boulder","state":"CO","zipcode":"80301","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-83.748237,42.278766]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Ann Arbor","phone":"(734) 769-1590","storeid":"02","ffmcId":"10056","RBStoreId":"007","Address":"327 S Main Street, Ann Arbor, MI 48104","AddressLines":{"line1":"327 S Main Street","line2":"","city":"Ann Arbor","state":"MI","zipcode":"48104","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-83.208229,42.541477]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Birmingham","phone":"(248) 203-7777","storeid":"03","ffmcId":"10052","RBStoreId":"001","Address":"34288 Woodward Ave, Birmingham, MI 48009","AddressLines":{"line1":"34288 Woodward Ave","line2":"","city":"Birmingham","state":"MI","zipcode":"48009","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-87.655949,41.915706]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Chicago","phone":"(773) 529-1111","storeid":"04","ffmcId":"10054","RBStoreId":"003","Address":"1901 North Clybourn, Chicago, IL 60614","AddressLines":{"line1":"1901 North Clybourn","line2":"","city":"Chicago","state":"IL","zipcode":"60614","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-83.048827,42.333791]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Detroit","phone":"(313) 338-3661","storeid":"05","ffmcId":"14608","RBStoreId":"014","Address":"1275 Woodward Ave, Detroit, MI 48226","AddressLines":{"line1":"1275 Woodward Ave","line2":"","city":"Detroit","state":"MI","zipcode":"48226","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-84.477334,42.733485]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"East Lansing","phone":"(517) 333-4000","storeid":"06","ffmcId":"10051","RBStoreId":"000","Address":"555 E Grand River Ave, East Lansing, MI 48823","AddressLines":{"line1":"555 E Grand River Ave","line2":"","city":"East Lansing","state":"MI","zipcode":"48823","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-85.669997,42.955232]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Grand Rapids","phone":"(616) 570-0135","storeid":"07","ffmcId":"15608","RBStoreId":"015","Address":"410 Ionia Ave SW, Grand Rapids, MI 49503","AddressLines":{"line1":"410 Ionia Ave SW","line2":"","city":"Grand Rapids","state":"MI","zipcode":"49503","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-82.916142,42.390324]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Grosse Pointe","phone":"(313) 881-9999","storeid":"08","ffmcId":"10053","RBStoreId":"002","Address":"17037 Kercheval, Grosse Pointe, MI 48230","AddressLines":{"line1":"17037 Kercheval","line2":"","city":"Grosse Pointe","state":"MI","zipcode":"48230","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-94.592791,39.042297]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Kansas City","phone":"(816) 832-4493","storeid":"09","ffmcId":"10065","RBStoreId":"011","Address":"439 W 47th Street, Kansas City, MO 64112","AddressLines":{"line1":"439 W 47th Street","line2":"","city":"Kansas City","state":"MO","zipcode":"64112","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-83.2169984,42.5467069]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 11am - 6pm Sun: 12pm - 6pm","description":"Moosejaw Storefront","name":"Birmingham Bike and Snow","phone":"(248) 212-0565","storeid":"11","ffmcId":"17108","RBStoreId":"022","Address":"284 West Maple Rd, Birmingham, MI 48009","AddressLines":{"line1":"284 West Maple Rd","line2":"","city":"Birmingham","state":"MI","zipcode":"48009","country":"US"},"closingHours":{"sunday":"18","monday":"19","tuesday":"19","wednesday":"19","thursday":"19","friday":"19","saturday":"19"}}},{"geometry":{"type":"Point","coordinates":[-94.2087133,36.3719108]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 10am - 8pm Sun: 11am - 6pm","description":"Moosejaw Storefront","name":"Bentonville","phone":"(479) 265-9245","storeid":"12","ffmcId":"715845991","RBStoreId":"025","Address":"111 South Main Street, Bentonville, AR 72712","AddressLines":{"line1":"111 South Main Street","line2":"","city":"Bentonville","state":"AR","zipcode":"72712","country":"US"},"closingHours":{"sunday":"18","monday":"21","tuesday":"21","wednesday":"21","thursday":"21","friday":"21","saturday":"21"}}},{"geometry":{"type":"Point","coordinates":[-94.7955,38.89087]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Sat: 10am - 8pm Sun: 11am - 6pm","description":"Moosejaw Storefront","name":"Olathe","phone":"(913) 203-4189","storeid":"13","ffmcId":"17109","RBStoreId":"023","Address":"686 N Central Street, Olathe, KS 66061","AddressLines":{"line1":"686 N Central Street","line2":"","city":"Olathe","state":"KS","zipcode":"66061","country":"US"},"closingHours":{"sunday":"18","monday":"21","tuesday":"21","wednesday":"21","thursday":"21","friday":"21","saturday":"21"}}},{"geometry":{"type":"Point","coordinates":[-85.5014,43.0543]},"type":"Feature","properties":{"category":"storefront","hours":"Mon - Friday: 11am - 8pm Sat: 9am - 9pm Sun: 11am - 6pm","description":"Moosejaw Storefront","name":"Cannonsburg","phone":"(606) 874-8050","storeid":"14","ffmcId":"17109","RBStoreId":"027","Address":"6800 Cannonsburg Rd NE, Belmont, MI 49306","AddressLines":{"line1":"6800 Cannonsburg Rd NE","line2":"","city":"Belmont","state":"MI","zipcode":"49306","country":"US"},"closingHours":{"sunday":"18","monday":"20","tuesday":"20","wednesday":"20","thursday":"20","friday":"20","saturday":"21"}}}]}
Free Shipping on this item
Add to Cart

Delivery: FREE

-- Get it by: Select Size/Color

to most locations

Delivery: Unavailable

Sorry, this product is only available in select stores

Store Pickup: FREE

-- Get it by:  

Store Pickup: Unavailable

Sorry, this product is not available for store pickup

at Moosejaw Stores Change

Ship to Store: FREE

-- Get it by: Select Size/Color

Ship to Store: Unavailable

Sorry, this product is not available for ship to store

at Moosejaw Stores Change

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, Gear Institute Best New Gear Outdoor Retailer Summer - 2015, Backpacker Magazine Editors' Choice Award - 2016, 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 2 out of 5 by from Too risky and poor service I bought the Guardian for treks to faraway places. With the bottom gasket leaking and the real possibility of some moving parts breaking or getting lost I have decided that this is too risky as a sole source of clean water. Probably the GUARDIAN GRAVITY WATER PURIFIER would be a far better option (but I now don't have the money). MSR have NEVER responded to my emails. It even took me one year after ordering the Guardian to receive it. Spare parts or spare filters might be too much to hope for.
Date published: 2023-09-21
Rated 3 out of 5 by from Not reliable enough I have the Guardian Purifier (I had to wait over one year to get it). Water leaks out from the lower gasket and from the reviews for this product it seems that we will have to look out for certain plastic pins to fail as well. In light of this we will probably not take this Purifier on our backcountry trips. Here in Australia you can't even get replacement filters or parts. I wish we had waited for (never knew it was coming) for the Guardian Gravity Purifier that would it seems eliminate all of the above problems. This is also a problem for Australians because this item is not available. When you try to buy from overseas they tell you they are not allowed to send to Australia. Ever heard of Catch 22? Thank you.
Date published: 2023-09-18
Rated 2 out of 5 by from Great When It Works...But You'll Want to Take a Backup TAKE A BACKUP! We bought the Guardian wanting the best purification solution that would give us peace of mind no matter where we traveled. Put it to work for the first time on a short trip to Lake Superior, MI backcountry where it was likely overkill. I had read the reviews on this site, on REI's and on various other reputable sources and heard enough good things to give it a shot. The Guardian is terrific when it is working properly, fast flow rate and smart design that make it simple to use. But, you'll notice that many of the negative reviews point out that there are specific failure points. I am glad I paid attention to them and brought a smaller back up filter and chem treatment because on our last night in the woods the o-ring failed and water was pouring out of the bottom of the filter assembly from all sides. Needless to say, "disappointed" doesn't accurately describe my reaction. I hope MSR can make this situation right for me personally, and more importantly fix the robustness issue or at least issue guidance on how to prevent it from happening in the future.
Date published: 2023-09-11
Rated 3 out of 5 by from Love my guardian, MSR customer service has left me hanging I've had my guardian for a couple years and it's absolutely the best filter/purifier I've used. The filter itself is 5 stars. However, on my last backcountry trip, the pre-filter piece snapped off (it's just a plastic joint, so it didn't take much) and I've submitted two repair/warranty tickets. MSR has not replied to either of my warranty tickets (despite confirmation that they were received). All I'm asking for is a new pre filter piece. At this point, I'd gladly buy a replacement piece but I can't even find one anywhere in Canada.
Date published: 2023-08-31
Rated 2 out of 5 by from Loved it until it failed in the backcountry I have owned this purifier for around five years and even though it is heavy and very expensive, I have always loved it. That is until my recent trip where it completely failed by leaking unfiltered water from the plastic base rendering it completely useless. This could have turned into a dangerous situation if we didn’t have a backup filtration plan. After a quick internet search it appears that this is a common failure point. While the recommend fix of unscrewing the black plastic base to leave a gap seems to resolve the issue, I am not sure I would be comfortable relying on this product anymore. It clearly seems to be a design flaw that MSR should work to resolve given that this filter is one of the most expensive products on the market.
Date published: 2023-07-30
Rated 4 out of 5 by from Great unit. When I first Great unit. When I first used it, the pin that holds the handle fell off and I spent 20-30 minutes looking for the 2 piece pin in the stream i was filtering water from. Now I know to make sure to check on the pin so it doesn’t fall off again. the pin always wants to fall off on its own and then i have to click it back closed again. Other than that issue, the filter works great
Date published: 2023-07-20
Rated 5 out of 5 by from The best available WE have been using the Guardian Purifier for several years now and just purchased out third one. We use it in a wilderness camp for up to 9 people for two weeks duration. We have never had a problem with the device or supplying ample water for each group. Several of our guests have purchased on for their own use after using the Guardian in our camp.
Date published: 2023-07-05
  • y_2023, m_9, d_27, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.35
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_235
  • loc_en_US, sid_10304112, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_moosejaw
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 8ms
  • REVIEWS, PRODUCT

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
  • y_2023, m_9, d_28, h_3CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.35
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_7
  • loc_en_US, sid_10304112, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_moosejaw
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 30ms
  • QUESTIONS, PRODUCT