{"@context":"https://schema.org/","@type":"Product","@id":"https://www.scheels.com/p/msr-guardian-gravity-purifier/40818-14005/","name":"MSR Guardian Gravity Purifier","image":["https://scheels.scene7.com/is/image/Scheels/04081814005"],"description":"The Guardian Gravity Purifier has you covered with safe water around the world, removing viruses, bacteria, protozoa, sediment and microplas","sku":"04081814005","mpn":"04081814005","brand":{"@type":"Brand","name":"MSR"},"offers":{"@type":"Offer","url":"https://scheels.com/p/04081814005/","priceCurrency":"CAD","price":449.99,"itemCondition":"https://schema.org/NewCondition","availability":"https://schema.org/InStock"}}{"reviews":[{"id":7192082,"locale":"en_US","rating":5,"title":"Virus capture and no more backflushing","text":"Will use the Purifier for the first time on a Sierra backpack trip in Sept, but today use the purge hose to get rid of the carbon deposits, then filtered about 5 liters of water into a bucket. Am really looking forward to no longer backflush, like we had to do with our old MSR filter (which is on its way to Geartrade). Also, very happy that the Purifier gets rid of viruses, which is a major concern now.","textLength":406,"csFlag":false,"inappropriateFlag":false,"reviewedFlag":false,"autoModerated":false,"published":true,"incentivized":false,"upVotes":0,"downVotes":0,"orderId":null,"dimensions":[],"responses":[],"tags":[],"media":{"photo":[],"video":[],"audio":[]},"user":{"nickName":"Greg R.","firstName":null,"lastName":null,"emailAddress":null,"externalId":null,"city":null,"state":null,"country":null,"ageRange":null,"badge":null,"shopperProfiles":[]},"reviewedDate":null,"purchaseDate":null,"dateCreated":"2025-08-27T00:00:00-04:00","customData":[],"incentiveType":null,"campaign":null,"deviceFingerprint":null,"topics":[],"syndication":{"sourceName":"Cascade Designs","siteUrl":"https://www.cascadedesigns.com/","logoUrl":"https://images.turnto.com/site/syndicationlogos/5056_LH48.png"},"catalogItems":[{"sku":"40818-14005","title":"MSR Guardian Gravity Purifier","url":"https://www.scheels.com/p/40818-14005","category":"camp-kitchen-water-filtration","reviewCount":8,"ratingCount":8,"averageRating":5,"ratingBreakdown":{"1":0,"2":0,"3":0,"4":0,"5":8},"active":true,"attributes":[]}]},{"id":7001288,"locale":"en_US","rating":5,"title":"I'm very impressed with the","text":"I'm very impressed with the use. It's easy to set up and flush; it's important to remove all the air from the system to ensure a good filtration rate. No backflushing required. I used it for my family of four in the backcountry, and it's perfect for setting up, walking away, and taking care of other things. 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Warding off microbiome disasters wherever I go; rural Mexico to remote Nepal, and everywhere in between (including sketchy airbnb tap water).","textLength":220,"csFlag":false,"inappropriateFlag":false,"reviewedFlag":false,"autoModerated":false,"published":true,"incentivized":false,"upVotes":0,"downVotes":0,"orderId":null,"dimensions":[],"responses":[],"tags":[],"media":{"photo":[],"video":[],"audio":[]},"user":{"nickName":"Jodie E.","firstName":null,"lastName":null,"emailAddress":null,"externalId":null,"city":null,"state":null,"country":null,"ageRange":null,"badge":null,"shopperProfiles":[]},"reviewedDate":null,"purchaseDate":null,"dateCreated":"2025-06-01T00:00:00-04:00","customData":[],"incentiveType":null,"campaign":null,"deviceFingerprint":null,"topics":[],"syndication":{"sourceName":"Cascade Designs","siteUrl":"https://www.cascadedesigns.com/","logoUrl":"https://images.turnto.com/site/syndicationlogos/5056_LH48.png"},"catalogItems":[{"sku":"40818-14005","title":"MSR Guardian Gravity Purifier","url":"https://www.scheels.com/p/40818-14005","category":"camp-kitchen-water-filtration","reviewCount":8,"ratingCount":8,"averageRating":5,"ratingBreakdown":{"1":0,"2":0,"3":0,"4":0,"5":8},"active":true,"attributes":[]}]},{"id":5731614,"locale":"en_US","rating":5,"title":"Nice upgrade","text":"I bought this after using MSR's regular gravit flow system for years. It's great to have the self-flusing feature, instead of having to back flush the old model. Very fast.","textLength":172,"csFlag":false,"inappropriateFlag":false,"reviewedFlag":false,"autoModerated":false,"published":true,"incentivized":false,"upVotes":0,"downVotes":0,"orderId":null,"dimensions":[],"responses":[],"tags":[],"media":{"photo":[],"video":[],"audio":[]},"user":{"nickName":"Janet P.","firstName":null,"lastName":null,"emailAddress":null,"externalId":null,"city":null,"state":null,"country":null,"ageRange":null,"badge":null,"shopperProfiles":[]},"reviewedDate":null,"purchaseDate":null,"dateCreated":"2024-09-24T00:00:00-04:00","customData":[],"incentiveType":null,"campaign":null,"deviceFingerprint":null,"topics":[],"syndication":{"sourceName":"Cascade Designs","siteUrl":"https://www.cascadedesigns.com/","logoUrl":"https://images.turnto.com/site/syndicationlogos/5056_LH48.png"},"catalogItems":[{"sku":"40818-14005","title":"MSR Guardian Gravity Purifier","url":"https://www.scheels.com/p/40818-14005","category":"camp-kitchen-water-filtration","reviewCount":8,"ratingCount":8,"averageRating":5,"ratingBreakdown":{"1":0,"2":0,"3":0,"4":0,"5":8},"active":true,"attributes":[]}]},{"id":5731615,"locale":"en_US","rating":5,"title":"Very satisfied. Used every day","text":"Very satisfied. Used every day to provide drinking water for a family of five in the Philippines.","textLength":97,"csFlag":false,"inappropriateFlag":false,"reviewedFlag":false,"autoModerated":false,"published":true,"incentivized":false,"upVotes":0,"downVotes":0,"orderId":null,"dimensions":[],"responses":[],"tags":[],"media":{"photo":[],"video":[],"audio":[]},"user":{"nickName":"Warren Y.","firstName":null,"lastName":null,"emailAddress":null,"externalId":null,"city":null,"state":null,"country":null,"ageRange":null,"badge":null,"shopperProfiles":[]},"reviewedDate":null,"purchaseDate":null,"dateCreated":"2024-09-17T00:00:00-04:00","customData":[],"incentiveType":null,"campaign":null,"deviceFingerprint":null,"topics":[],"syndication":{"sourceName":"Cascade Designs","siteUrl":"https://www.cascadedesigns.com/","logoUrl":"https://images.turnto.com/site/syndicationlogos/5056_LH48.png"},"catalogItems":[{"sku":"40818-14005","title":"MSR Guardian Gravity Purifier","url":"https://www.scheels.com/p/40818-14005","category":"camp-kitchen-water-filtration","reviewCount":8,"ratingCount":8,"averageRating":5,"ratingBreakdown":{"1":0,"2":0,"3":0,"4":0,"5":8},"active":true,"attributes":[]}]},{"id":5731617,"locale":"en_US","rating":5,"title":"Absolute Best Gravity System in the Market","text":"If budget is no object - then this is the filter to buy. I also have the Sawyer Gravity system which costs 4x cheaper. Not just a mere filter, it is a also purifier - and the carbon filter is the icing on the cake and makes the filtered water pleasant tasting. Everything about the package is pure premium. MSR did not skimp on the components and it looks and feel as expensive as it actually is.\n\nOperating is easy. Long term storage is a bit tedious - it is a 1 hour procedure - but I don't mind doing to ensure tip top performance and longevity.\n\nI know some complain about the flow rate. I never measured - I mean between the claimed 2 mins to reputedly slower 2m30secs in the field .. it is rather irrelevant to me for my use. Which is base camp use where I wont be moving for days. Part of enjoying the outdoors is the being calm about everything and 10L filtered water that comes about a few mins late, is a non-issue for me. And it is really great to produce so much filtered water for camp use effortlessly AND it is supercomforting to know that it is (if the claims are to be believed) the only filter to meet military grade specifications. That seems overkill for me but then why not! \n\nDownsides : long term storage and PRICE. This filter is insanely priced.","textLength":1270,"csFlag":false,"inappropriateFlag":false,"reviewedFlag":false,"autoModerated":false,"published":true,"incentivized":false,"upVotes":0,"downVotes":0,"orderId":null,"dimensions":[],"responses":[],"tags":[],"media":{"photo":[],"video":[],"audio":[]},"user":{"nickName":"Adil","firstName":null,"lastName":null,"emailAddress":null,"externalId":null,"city":null,"state":null,"country":null,"ageRange":null,"badge":null,"shopperProfiles":[]},"reviewedDate":null,"purchaseDate":null,"dateCreated":"2024-08-04T00:00:00-04:00","customData":[],"incentiveType":null,"campaign":null,"deviceFingerprint":null,"topics":[],"syndication":{"sourceName":"Cascade Designs","siteUrl":"https://www.cascadedesigns.com/","logoUrl":"https://images.turnto.com/site/syndicationlogos/5056_LH48.png"},"catalogItems":[{"sku":"40818-14005","title":"MSR Guardian Gravity Purifier","url":"https://www.scheels.com/p/40818-14005","category":"camp-kitchen-water-filtration","reviewCount":8,"ratingCount":8,"averageRating":5,"ratingBreakdown":{"1":0,"2":0,"3":0,"4":0,"5":8},"active":true,"attributes":[]}]},{"id":5731616,"locale":"en_US","rating":5,"title":"pure water less effort","text":"utilisation is very simple. i drink lake water all week and i was ok.","textLength":69,"csFlag":false,"inappropriateFlag":false,"reviewedFlag":false,"autoModerated":false,"published":true,"incentivized":false,"upVotes":0,"downVotes":0,"orderId":null,"dimensions":[],"responses":[],"tags":[],"media":{"photo":[],"video":[],"audio":[]},"user":{"nickName":"Yanick D.","firstName":null,"lastName":null,"emailAddress":null,"externalId":null,"city":null,"state":null,"country":null,"ageRange":null,"badge":null,"shopperProfiles":[]},"reviewedDate":null,"purchaseDate":null,"dateCreated":"2024-08-04T00:00:00-04:00","customData":[],"incentiveType":null,"campaign":null,"deviceFingerprint":null,"topics":[],"syndication":{"sourceName":"Cascade Designs","siteUrl":"https://www.cascadedesigns.com/","logoUrl":"https://images.turnto.com/site/syndicationlogos/5056_LH48.png"},"catalogItems":[{"sku":"40818-14005","title":"MSR Guardian Gravity Purifier","url":"https://www.scheels.com/p/40818-14005","category":"camp-kitchen-water-filtration","reviewCount":8,"ratingCount":8,"averageRating":5,"ratingBreakdown":{"1":0,"2":0,"3":0,"4":0,"5":8},"active":true,"attributes":[]}]}],"offset":0,"limit":10,"total":8}"Full Description:\nThe Guardian Gravity Purifier has you covered with safe water around the world, removing viruses, bacteria, protozoa, sediment and microplastics hands-free. Simply hang it while you go about your tasks at the hostel, basecamp or campsite—its 10L reservoir supports the daily water needs of multiple people. Originally designed to protect servicemembers in the field, this rugged purifier handles the abuse of travel and meets the NSF P248 military testing standard.\n\nFeatures:\n\u003cul>\n\u003cli>Ultimate Virus Protection: Meets NSF protocol P248 military testing standard for removing viruses (99.99%), bacteria (99.9999%), protozoa (99.9%), sediment and microplastics from “worst-case” water conditions.\u003c/li>\n\u003cli>Better-Tasting Water: Two-stage purifier includes activated carbon to reduce chemicals and unpleasant tastes and odors.\u003c/li>\n\u003cli>Easy to Fill: 10 -liter reservoir is easy to fill at sinks and streams alike; covers daily water needs for drinking, cooking and hygiene.\u003c/li>\n\u003cli>Simple Cleaning: No backflushing required—simply opening the purge hose flushes the system to clean it and maintain flow rate.\u003c/li>\n\u003cli>Fast-Flow Rate: Up to 1 liter in 2 minutes with optimal reservoir hang height of 6 feet, 2.5x faster than the next leading gravity purifier.\u003c/li>\n\u003cli>Engineered for Travel: Rugged, military-grade construction. Compact system fits easily in carry-on luggage and smaller packs.\u003c/li>\n\u003cli>NSF P248 Testing Standard: The most rigorous scientific certification for proving a treatment device safely removes claimed contaminants from challenging wilderness water sources. Guardian devices are the market’s only purifiers to pass the military standard P248 testing for virus removal.\u003c/li>\n\u003c/ul>\n\nSpecifications:\n\u003cul>\n\u003cli>Cartridge life: 3\u003c/li>\n\u003cli>000+ liters\u003c/li>\n\u003c/ul>\n"