Brand | MSR |
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Special Feature | Lightweight |
Product Dimensions | 9.5"L x 3.75"W x 7"H |
Package Information | Bag |
Installation Type | Portable |
Power Source | Hand Powered |
Item Weight | 1.5 Pounds |
Model Name | MiniWorks EX Purifier |
Maximum Flow Rate | 1 Liters Per Minute |
Item Package Dimensions L x W x H | 8.9 x 5.59 x 4.37 inches |
Package Weight | 0.68 Kilograms |
Item Dimensions LxWxH | 9.5 x 3.75 x 7 inches |
Brand Name | MSR |
Color | One Color |
Suggested Users | unisex-adult |
Number of Items | 52 |
Manufacturer | Cascade Designs Inc. |
Part Number | 56431 |
Style | Water Purifier System |
Size | One Size |
Sport Type | Sporting Goods |
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86% positive over last 12 months
93% positive over last 12 months
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MSR MiniWorks EX Backcountry Water Purifier System
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | MSR |
Special Feature | Lightweight |
Product Dimensions | 9.5"L x 3.75"W x 7"H |
Package Information | Bag |
Installation Type | Portable |
Power Source | Hand Powered |
Item Weight | 1.5 Pounds |
Model Name | MiniWorks EX Purifier |
Maximum Flow Rate | 1 Liters Per Minute |
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About this item
- Microfilter water filter pump and 50 purification tablets for hiking, backpacking, camping, travel, survival, and emergency preparedness
- Replaceable carbon and ceramic filter removes bacteria, protozoa, organic compounds, and particulate; Aquatabs protect against viruses
- Pumps at a rate of one liter per minute; compatible with a variety of wide mouth water bottles, and hydration bladders (sold separately)
- Effective against viruses (99.99%), bacteria (99.9999%), and protozoa (99.9%); filter treats up to 2,000 liters of water and each tab treats 2 quarts
- Pump measures 7.5 x 2.75 inches and weighs 1 pound; storage bag included; manufacturer’s limited lifetime warranty; made in the USA
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From the brand
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In 1969, Seattle engineer and lifelong mountaineer Larry Penberthy formed Mountain Safety Research as a one-man crusade dedicated to improving the safety of climbing equipment. The fuel behind Larry's passionate fire was a simple belief that still drives our team today:
The idea that better, safer, more reliable equipment is the key to unlocking greater adventures.
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Designing for Durability and Longevity
We build products to last, offering outdoor enthusiasts more adventures and reducing the amount of goods piling up in landfills.
Our first priority is to design and manufacture durable, long-lasting products. Extensive testing—both in-house and in the field—allows us to ensure that our products will stand up to the wear and tear to which our customers subject their gear.
Our products have stood the test of time, and we often hear stories from customers who are still using MSR stoves from the 1980s. We believe in what we make and stand behind it.
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From the manufacturer
Mountain Safety Research
MSR has always been a company of engineers, inventors and unruly dreamers. Larry Penberthy started the company in 1969 on a personal crusade against unsafe equipment. Today, we’re still an intrepid team obsessed with creating the most reliable, high-performance gear possible.
Whether it’s defying the status quo in equipment design or radically shifting the social mindset, we believe the greatest innovations—and explorations—are inspired by the world’s unruly dreamers.
Photo By: Scott Rinckenberger
MiniWorks EX Purifier System
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ReliableDurable carbon/ceramic element ensures safe, taste-free water—even with frequent, heavy use. |
TestingEffective against viruses (99.99%), bacteria (99.9999%), protozoa (99.9%) and particulate. Meets U.S. EPA drinking water standards* and NSF protocol P231 testing standard. |
Iodine-FreeAquatabs tablets inactivate viruses without bad-tasting iodine. Includes 50 individually packaged tablets. Each tablet treats up to 2 quarts of water depending on conditions. |
Field-maintainableFilter can be cleaned repeatedly for full flow recovery with no tools required. |
MSR Purifiers & Microfilters
From our fast-and-light microfilters to our gravity-powered systems, we apply the latest technologies and rigorous testing to assure you safe water on every adventure.
Safe Water Starts With Science
We invest in an on-site water lab with staff scientists, and individually test our devices to ensure they deliver greater safety and ease of use.
Every MSR filter and purifier features:
- An integrity check that allows the user to easily confirm that, if the device is dropped or frozen, the fibers haven’t been damaged and the device is working safely—a feature most competitors don’t provide.
- An end-of-life indicator—the filter media stops passing water. This clearly identifies that it’s time to replace the cartridge without exposing the user to harmful pathogens.
- Passes NSF Protocol P231 throughout the filter’s life. The test confirms microbiological threat removal from a variety of water types, unlike NSF 42 and 53, which aren’t suitable tests for backcountry use.
MiniWorks EX Microfilter | MiniWorks EX Purifier | Guardian Purifier | TrailShot Microfilter | AutoFlow XL Gravity Filter | Guardian Gravity Purifier | |
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Customer Reviews |
4.6 out of 5 stars
1,527
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4.6 out of 5 stars
211
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4.6 out of 5 stars
442
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4.6 out of 5 stars
944
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4.7 out of 5 stars
55
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4.5 out of 5 stars
71
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Weight | 16 oz | 16 oz | 17.3 oz | 5 oz | 12 oz | 1 lbs 3 oz |
Flow Rate (Liters per Minute) | 1 L/Minute | 1 L/Minute | 2.5 L/Minute | 1 L/Minute | 1.75 L/Minute | 0.5 L/Minute |
Cartridge Life (Liters) | 2,000 Liters | 2,000 Liters | 10,000 Liters | 2,000 Liters | 1,500 Liters | 3,000+ Liters |
Effective Against Protozoa (ex: Giardia, Cryptosporidium) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Effective Against Bacteria (ex: E. coli, Salmonella, Cholera) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Effective Against Viruses (ex: Hepatitis A, Norwalk, Rotavirus) | ✓ | ✓ | ✓ | |||
Effective Against Particulates (dirt, microplastics) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Effective Against Taste/Odor | ✓ | ✓ | ✓ | ✓ | ||
Testing Standards P248/P231 | NSF P231 Testing For removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water. | NSF P231 Testing For removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water. | NSF P248 Testing Standard used by U.S. military for removal of viruses, bacteria (99.9999%), protozoa (99.9%), and sediment from “worst-case” water conditions. | NSF P231 Testing For removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water. | NSF P231 Testing For removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water. | NSF P248 Testing Standard used by U.S. military for removal of viruses, bacteria (99.9999%), protozoa (99.9%), and sediment from “worst-case” water conditions. |
Water Bottle Adaptor | ✓ | ✓ | ✓ | ✓ | ✓ |
Product Description
The MSR MiniWorks EX Microfilter Water Purifier provides proven, reliable water filtration and purification for camping and hiking, backcountry adventures, global travel, survival situations, and emergencies. The replaceable Marathon EX ceramic element removes bacteria (such as E. coli. Shigella, salmonella, cholera), protozoa (such as giardia, cryptosporidium, amoebae), and particulate, and its carbon core eliminates unpleasant tastes and odors caused by organic compounds such as iodine, chlorine, and pesticides. Also included are 50 Aquatabs, which protect against viruses (99.99% effective) when added to filtered water; each tab treats up to two quarts of water. Thanks to its innovative AirSpring Accumulator, the microfilter is capable of pumping one liter of water per minute, a flow rate that is easily maintained in the field, without any tools. The MSR MiniWorks EX Microfilter Water Purifier meets NSF protocol P231 testing standards for removal of bacteria (99.9999%) and protozoa (99.9%), throughout its replaceable filter life of 2,000 liters of water. Compatible with a wide variety of water containers such as Nalgene, Camelback, and MSR Dromedary Bags (sold separately); bottom screws on to threaded lids, or water can be pumped directly into a hydration reservoir drinking tube. Lightweight and compact, the pump measures 7.5 x 2.75 inches and weighs one pound. Includes 50 Aquatabs, and a storage bag. Manufacturer’s limited lifetime warranty. Made in the USA.
Product information
Technical Details
Additional Information
ASIN | B078T9Z5N9 |
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Customer Reviews |
4.6 out of 5 stars |
Best Sellers Rank | #101,677 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #130 in Camping & Hiking Water Filters |
Date First Available | July 6, 2017 |
Feedback
Product guides and documents
Videos
Videos for this product
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MSR MiniWorks Maintenence
Cascade Designs Inc.
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, quality and water quality of the water purification unit. For example, they mention it works great, provides clean, drinkable water and that cleaning is a breeze.
AI-generated from the text of customer reviews
Customers are satisfied with the performance of the water purification unit. They mention that it works well, is satisfactory, and is a great value. However, some customers report that the filter works well but is slow.
"Very based, worked great and was easy to use. Satisfactory." Read more
"This filter worked great on my five day trip. Pumped water out of the lake and it tasted like the water out of my reverse osmosis system at home...." Read more
"The filter seems to work great, but it’s slow. Not so bad if you’re filling a 32 oz nalgene. I tried filling a 6l bag, and it took a while...." Read more
"...Works great!" Read more
Customers are satisfied with the quality of the water purification unit. They mention that it has a good filter, and it filters water well.
"...This filters water so well, you'll hate drinking most of the bottled waters out there. ......" Read more
"...We bought this one for our oldest. Best filter. It's also reasonable on price. If your looking for a manual water filter this is the one!" Read more
"Amazing product and super helpful customer service" Read more
"Good filter..." Read more
Customers are satisfied with the water quality of the water purification unit. They mention that the water was fairly clean to begin with, and it provides clean, drinkable water.
"...The water was fairly clean to begin with as I got it from northern Lake Michigan. But all in all worked great." Read more
"...Screws directly onto my nalgene bottle. The water is clean and maintanence is minimal to keep the filter working...." Read more
"...Water tastes great, it packs down small, cleaning is a breeze, and it is 100% field serviceable without any tools...." Read more
"Provides clean, drinkable water. The only downside is that you have to scrub the filter every 3/4 of a gallon...." Read more
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Top reviews
Top reviews from the United States
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This filters water so well, you'll hate drinking most of the bottled waters out there. ...waters - water, yeah right.... Nothing better than mountain springs.
Nothing gets through, and what can will be killed with treatment. Highly recommend for any Backcountry hike or other situation.