MSR Guardian Water Purifier for Backcountry Use, Global Travel, and Emergency Preparedness
Original price was: $389.95.$292.46Current price is: $292.46.
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Military-grade water purifier pump removes viruses, bacteria, protozoa, and particulate from contaminated water sources virtually anywhere on earth
Meets NSF protocol P248 testing standard of the U.S. military, using medical-grade fibers to provide protection from the tiniest waterborne threats
Pumps at a rapid 2.5 liters per minute, treats up to 10,000 liters of water, and withstands freezing, drops, heavy use, and harsh environments
Pump self-cleans on every stroke, providing consistently fast flow rates with zero hassle—no backflushing or filter-scrubbing ever required
Ideal for backcountry, expeditions, global travel, and survival; purifier pump measures 8.2 x 4.7 inches and weighs 17.3 ounces; made in the USA
Customers say
Customers find the water purifier easy to use, with one noting it can be taken apart and serviced quickly. Moreover, the filter receives high praise as the best on the market, effectively clearing and cleaning water quickly, and customers appreciate its fast water flow, with one mentioning it can filter two liters in about a minute. Additionally, they value its water capacity, with one noting it eliminates the need to store extra water, and they enjoy the good-tasting clean water it produces. However, opinions on value for money are mixed, with some finding it worth the cost while others consider it expensive.
AI-generated from the text of customer reviews
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9 reviews for MSR Guardian Water Purifier for Backcountry Use, Global Travel, and Emergency Preparedness
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Original price was: $389.95.$292.46Current price is: $292.46.
Todd M. –
Love this purifier
This MSR Guardian is not the smallest or lightest purifier, but it does a great job at what it is supposed to do. It takes a short amount of time to pump the purified water in a bottle. Even better is if your bottle or container has a wide mouth that can be screwed on to the device. Otherwise, you play a balancing act pumping and holding the container for the water so that is will not spill out.Doesn’t need a deep water source to be able to pump. Really like how it backflushes to keep it clean. You do want to make sure you keep this maintained over the years, especially if you do not use it all the time. It will keep some water in the device and you do not want it to dry out. There is a maintenance kit available to keep other working parts moving smoothly.It is very pricy, but it does a great job. It really makes the water taste great, and you have the peace of mind that you are getting clean water. While it is heavy for backpacking, I think the weight is worth it. I am very happy with it.
Why do you care –
Great product, i have been testing it out over …
Great product, i have been testing it out over the last few days and the result is always the same, good tasting clean water no matter the water source and FAST. I read many reviews on water filters before purchasing one and this one was at the top of most list’s and noted its down side was the size of the device upon receiving the guardian i would have to disagree the size is comparable to most systems and simple as could be for use. I will be taking it into the field on Friday for a week long backpack trip and after that i will comment more about the durability of the unit. As of now i am pleased with the quality it seams well built and easy to maintain and can be taken apart and serviced in no time if need be. It also came with a nice zip up carry case. I would say its well worth the money and will probably last me forever.Returned home from the trip, after a good field test I would go with 4.5 starts but will leave it a five. Wear the pump handle attaches to the plunger is a mixture of steel and plastic parts it held up fine but it is all held together with a plastic C clip, if you get much more than a moderate pump pace the clip hangs up and pops loud, I am certain this clip will fail and break at some point so i plan on finding a spare. The clip is basic something you would find at a auto parts store for cents and will be metal 🙂 the other thing i noticed in the promotion video for the pump it says as long as the filter on the end is wet it it will pump only water and no air….that is mostly true but on 2 occasions it pulled air and we were forced to hold it under water and it primed up and was fine. Other then the clip it pumps and cleans water very fast and efficient its quiet and easy to set up and put away i would buy it again.
Sean E. Bowen –
Comes in a nice zip up case with a fine mesh screen on …
I picked this up to have access to clean water for a group while backpacking/traveling or for emergency conditions where public water is contaminated. Think of boil water advisories when the local water main has broken. Remember this is a mechanical filter and that chemical or radiological contaminants are NOT removed by mechanical filters. This won’t help you fix the water in Flint, MI or magically turn seawater into potable water.Eager to see how this works, I ran a little test with a water source I know is contaminated with coliform bateria. I took samples from the source and from the water filtered by this unit. Running the samples and a control through a test kit showed the filtered water was indeed bacteria free.Ultralight backpackers will balk at the weight but for me I appreciate the ease of use. I was surprised a how fast the filtered water comes out. Fits my Nalgene bottle perfectly. I don’t have to mess with bags or wait around for gravity to work. Hose is long enough so you don’t fall in the pond or river trying to scoop up water.Comes in a nice zip up case with a fine mesh screen on top so when you put it away the hose can dry off with out contaminating the rest of your stuff. Be sure to buy the annual maintenance kit which is sold separately – it contains o rings and other goodies to maintain your pumpI like that this filters viruses. I wish I had had this on recent trips to India and the DR. Now I am better prepared! I also appreciate the fact that it backflushes itself on every stroke. Very clever.This thing is pretty expensive but it is so easy to use I am glad to have it.
Customer –
Best purchase I’ve ever made for backpacking and hiking
This is by far the best purchase I’ve made out of all of the purchases I’ve made in buying adventure gear at places like REI, Cabelas, and Amazon. I’ve taken the Guardian on all of my backpacking trips for the past 2 summers. I also regularly take it car camping, hiking, canoeing, fishing, etc. This is one of my top 5 favorite adventure gear items that I own and take it every where I go. I don’t know what I would do without it. I plan on taking it to Europe this summer as well.I was initially hesitant in making this purchase due to the price being $350, but have never looked back. I can honestly say it is one of the best purchases I’ve ever made. If you are on the verge of making a decision like I was at the time, I definitely (100%) think you should purchase it. You will not regret it. If you spread the cost over the 5-10yr lifespan of the product, then it is extremely easy to justify the cost.It is by far better than a lifestraw and other pumps out there. This is the best water purifier on the market for these reasons: it is the fastest for pumping water, the easiest to use, will filter through dirt, and filters the most contaminants (besides chemicals) vs. other filters on the market. For those reasons, I without a doubt recommend this! 5 stars!
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onifade –
ho scritto alla casa produttrice e non si sono degnati di rispondere – Fatte varie misurazioni sull’acqua e non filtra nulla, anzi, alcuni valori peggiorano e vorrei capire perchè! :-(( delusa e basita!
ÎLPÎSÎ –
Conforme à mes attentes
JORGE GARCÃA MONSALVE –
Muy útil
adzff –
Ich bin mit einem Freund vier Wochen durch die USA gereist. Wir mieteten uns ein Auto, fuhren in die Nationalparks, lieÃen das Auto stehen und dann hieà es backpacking. Dort hatten wir unsere permits, um jeweils fünf Tage mit Rucksack durch den Park zu wandern: Yellowstone NP, Yosemite NP, Grand Teton NP. In den Nationalparks anderen haben wir nur kürzer gezeltet.Wenn man mit dem Rucksack loszieht, erhält man von der Parkverwaltung feste Plätze, an denen man zelten kann. Dort ist dann immer ein kleiner Fluss oder ein See. Das ist notwendig, weil es ohne nicht geht. Wasser kann man unmöglich mit sich tragen, maximal zwei/drei kleine Wasserflaschen oder ein Trinksystem im Rucksack. Ich z.B. hatte ein zwei Liter Trinksystem im Rucksack, dass reichte im Juli für einen halben Tag. Aber alles, was über einen Tag hinausgeht, jede Ãbernachtung, erfordert, dass man ein Wasserfilter mit sich nimmt. Ich hatte noch den Sawyer Wasserfilter mit, der natürlich viel billiger ist. Aber er war in jedem MaÃe ungeeignet. Man braucht soviel Wasser, allein um die Nahrung zuzubereiten, abends Tee zu kochen, morgens Kaffee, Zähne zu putzen, alles sauber zu halten, sich sauber zu halten…Wer jetzt denkt, man kann dort in allen Seen baden, den verweise ich auf unseren Platz im Yellowstone Park: Ein See mit Millionen von Blutegeln. Es war unbeschreiblich. Alles voll, ich habe sowas noch nicht gesehen. Da reingehen wäre interessant gewesen, aber wir verzichteten. Auch kann man nicht immer baden. An den wenigsten Stellen hatten wir einen geeigneten See. Und selbst, wenn man einen See oder Fluss hat, kann man auch nicht einfach so das Wasser trinken, was dort rumsteht oder rumflieÃt, es ist halt auch nicht ein Fjord in Norwegen.Wir haben am Tag soviel Wasser verbraucht, dass wir oft am Pumpen waren. Ohne den MSR Guardian hätte wir es nicht geschafft. Das Ding pumpt sehr viel Wasser, was bitter nötig war. Mit dem Sawyer ist das einfach nicht zu schaffen.Ich habe meine Nalgene Wasserflasche unten dran geschraubt und in 30 Sekunden einen Liter gepumpt, um Wasservorräte aufzufüllen und Wasser für die Nahrung zu filtern. Die Nahrung war gefriergetrocknet, weil man auch richtiges Essen nicht mitnehmen kann: Wir hatten schon Ultraleicht-Equipment gehabt, aber trotzdem ist ungenügendes freies Volumen im Rucksack immer ein Problem gewesen. Gefriergetrocknete Nahrung im Rucksack ist extrem Platzsparend, man benötigt dann natürlich aber auch entsprechend viel Wasser zur Zubereitung. 3 Mahlzeiten am Tag waren Pflicht, bei 20 kg Marschgepäck und 10 km Marsch auf 2300 Meter Höhe. Dementsprechend viel Wasser braucht man. An einem Tag hatten wir zu Testzwecken den Sawyer Filter (Sawyer Point One) genommen, aber dann abgebrochen, weil es viel zu lange dauerte, das Wasser zu filtern.Der MSR Guardian ist handlich, schnell zu benutzen, hat eine hohe Pumpleistung und ist sehr robust. Auch fühlte ich mich einfach sicherer, weil ich wusste, dass das Fiberglas auch Viren rausfiltert, was beim Sawyer nicht der Fall ist. Die Pumpleistung war überragend. Wenn ich mir vorstelle, nur mit dem Sawyer hingefahren zu sein, so, wie es erst geplant war, weil der Guardian mir zu teuer war, das wäre eine Katastrophe gewesen. Der Militärtechnik, die den Streitkräften der Vereinigten Staaten helfen sollte, überall auf der Welt Wasser zu filtern, kann man bedingungslos vertrauen. Ich habe den Wasserfilter seit dem ein paar mal benutzt, in Irland und Spanien. Ich empfehle ihn uneingeschränkt, auch noch vor den Katadyn Wasserfiltern, die ich davor hatte und mir immer Probleme machten, weil sie nicht dicht waren oder kaputt gingen.An den Guardian habe ich dann noch einen Platypus Gravity Aktivkohlefilter angeschlossen. Der wird mit einem Plastikrohr geliefert, so dassman das Plastikrohr an das Ende des Guardian macht, da dann den Aktivkohlefilter dran und das Wasser war klar und schmeckte wie Leitungswasser. Auch aus den braunsten Brühen, es ist beeindruckend. Ohne Aktivkohlefilter ging es auch, aber das Wasser war etwas trüber und schmeckte torfig.Ich habe überlegt, ob es aufgrund des Preises nur vier Sterne sind. Aber meine Trekkingreisen haben mich so sehr überzeugt, auch das Studium der im Guardian steckenden Technik, dass ich mich für fünf Sterne entschieden habe.