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Product Description
DECENT FEATURES of the MSR Miniworks EX Microfilter Long-Lasting: Durable ceramic element filters up to 2,000 liters Solid Activated Carbon Core: Removes unpleasant tastes and many chemical contaminants Fast Flow Rate: AirSpring Accumulator increases filtration speed up to 1 liter per minute Field-Maintainable: Can be cleaned repeatedly for full filter recovery; no tools required for complete disassembly The SPECS Protozoa Bacteria Particulate Chemicals/Toxins (taste/odor) Weight: 16 oz / 456 g Dimension: 7.5" x 2.75" / 19 x 7 cm Filter Matrix: Ceramic Filter Pore Size: 0.2 Micron Flow: 1 Liters per minute Flow: 80-90 Strokes per liter Cartridge Life: 2000 Liters Field Cleanable Field Maintainable Mechanical Advantage (pumping) Water Bottle Adapter Cartridge Replacement Indicator This product can only be shipped within the United States. Please don't hate us.
Product Details
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Customer Reviews
Most Helpful Customer Reviews
362 of 364 people found the following review helpful
By R. Zamudio
Color Name:-| Size Name:One Size|Amazon Verified Purchase
I researched filtration systems for almost a month before settling on the MSR miniworks. I figured I could just go pick one up at the local Cabela's or REI, but BOTH retail stores were sold out of these, while there was still a good supply of the other MSR and Katadyn filter systems on the shelf. I took this as a sign that this is the filter to have and ordered it from Amazon, and it has been worth every penny. Read on....
In Camp:
The filter is very simple to use and has a good output-per-pump ratio. You never really feel like you are doing more work than you should for the amount of water you are pushing through, especially if you take into account the fact that every pump is worth about one gulp of nasty water that you WON'T have to drink. If you do see a diminished output, simply unscrew the filter housing and give the element a light scrubbing. We were taking water from a brown lake that is loaded with tannins and we would get about 2 litres through (about 2 full-size nalgene bottles worth) before we noticed the filter could use a cleaning. Tannin-loaded water is supposedly some of the worst for clogging these ceramic filters, so if you have cleaner water sources at your site than we do, your element-cleaning cycles should be farther apart. The water came out crystal-clear and almost tasteless. It didn't taste like Dasani bottled water, but it definitely didn't taste like tea-colored lake water either. Pretty much neutral. More importantly, it tasted CLEAN and nobody got sick. Also, the MSR Miniworks requires no chemical additives but still claims to filter everything but viruses. The chance of contracting a waterborne virus from a U.S. lake or stream (think Polio, Hep-A, SARS, and a few others which you have probably had vaccinations for) is far lower than getting sick from bacteria or parasites. If this still bothers you, you can still boil your clear, clean-tasting water just to be sure.
Out of Camp:
The maintenance on this filter is very simple. The unit breaks down into 4 major parts, and the wrist pins on the pump assembly are quick-release squeeze-and-push types. You can literally have this thing stripped down and cleaned completely in about 5 minutes, and that includes the sterilization of the filter element. A couple dabs of silicone grease or chap stick is all you need to lube it up when you are reassembling the unit.
The Hidden Bonus:
$80 may seem like a lot for a water filter, but the MSR miniworks pays you back exponentially...
Prior to buying a filtration system, everyone in our backpacking party hauled their own water needed for the entire trip. We would calculate what we needed for hydration and cooking each day, plus a bit more just in case, and we strictly stuck to these rations. We would have enough water, but never enough to truly quench one's thirst. Having this filter in our party allowed us to drop about 15 lbs carried, per person! Plus, we didn't have to pack out a bunch of empty water bottles anymore. One filter supports 4 of us and we now drink as much as we want. When you think about how important hydration is to your body's systems (Read Cody Lundin's "98.6 Degrees" book and you will know more about the subject than you ever wanted to), shelling out $80 to have clean, safe water on-demand anywhere you can find a water source is a small price to pay.
Tips:
-Put a coffee filter over the hose inlet and secure it with a twist-tie, rubber band, or fishing line. This will make your MSR filter pump more efficiently for longer without as-frequent element cleaning. Everytime you clean the element, you are scrubbing away some of the element's overall diameter. When it gets too thin, you have to get a new element. Fewer cleaning cycles = prolonged filter life and more money remains in your pocket. Filter element, $40. Coffee filter, 3 to 4 cents.
-Bring a spare filter element if you are going on an extended trip or are going to be absolutely dependent on this filter for your drinking water while you are out! Meaning: hiking back to your vehicle and driving like a madman to the nearest 7-11 for a drink before you go into a coma from dehydration is not going to be an option! The word is, these ceramic elements are fragile. Finding this out at the wrong time and being caught without a spare would be a very bad thing. If you spent the cash for the filter and other people in your party use it, have them pony up the $40 and buy the spare element for you. It's only fair.... right?
-USE A NALGENE BOTTLE WITH THIS UNIT (or other similar one that will attach to the adapter). The motion created while you are pumping is far too violent for precision-aiming the output stream into any loose container, except for a bucket. You can also attach another length of rubber hose to the outlet and run that to your container, but we have not tried this yet. The Nalgene bottle seemed like the simple solution to use with the filter and we filled our other containters from this bottle.
{Product use update} - Our party of 3 did a 4-day backcountry hike in the Grand Canyon (search: Tanner Trail) this past winter. This is definitely NOT a tourist trail, and the first 2000-3000 ft of elevation is not much a trail at all. The noted only water source along this entire route is at the very bottom of the canyon, the Colorado River. We were able to augment our hike-in water supply by searching for pools of water trapped in depressions of the rocks near the places where we made camp, and pumping water from them using the MSR Miniworks. I don't even want to think of what was in those water pools, but what came through the filter was clean and refreshing. We made notes of the larger water pools, which allowed us to lighten our water load on the hike-out and stop by the pools for a top-off when we needed it.
In Camp:
The filter is very simple to use and has a good output-per-pump ratio. You never really feel like you are doing more work than you should for the amount of water you are pushing through, especially if you take into account the fact that every pump is worth about one gulp of nasty water that you WON'T have to drink. If you do see a diminished output, simply unscrew the filter housing and give the element a light scrubbing. We were taking water from a brown lake that is loaded with tannins and we would get about 2 litres through (about 2 full-size nalgene bottles worth) before we noticed the filter could use a cleaning. Tannin-loaded water is supposedly some of the worst for clogging these ceramic filters, so if you have cleaner water sources at your site than we do, your element-cleaning cycles should be farther apart. The water came out crystal-clear and almost tasteless. It didn't taste like Dasani bottled water, but it definitely didn't taste like tea-colored lake water either. Pretty much neutral. More importantly, it tasted CLEAN and nobody got sick. Also, the MSR Miniworks requires no chemical additives but still claims to filter everything but viruses. The chance of contracting a waterborne virus from a U.S. lake or stream (think Polio, Hep-A, SARS, and a few others which you have probably had vaccinations for) is far lower than getting sick from bacteria or parasites. If this still bothers you, you can still boil your clear, clean-tasting water just to be sure.
Out of Camp:
The maintenance on this filter is very simple. The unit breaks down into 4 major parts, and the wrist pins on the pump assembly are quick-release squeeze-and-push types. You can literally have this thing stripped down and cleaned completely in about 5 minutes, and that includes the sterilization of the filter element. A couple dabs of silicone grease or chap stick is all you need to lube it up when you are reassembling the unit.
The Hidden Bonus:
$80 may seem like a lot for a water filter, but the MSR miniworks pays you back exponentially...
Prior to buying a filtration system, everyone in our backpacking party hauled their own water needed for the entire trip. We would calculate what we needed for hydration and cooking each day, plus a bit more just in case, and we strictly stuck to these rations. We would have enough water, but never enough to truly quench one's thirst. Having this filter in our party allowed us to drop about 15 lbs carried, per person! Plus, we didn't have to pack out a bunch of empty water bottles anymore. One filter supports 4 of us and we now drink as much as we want. When you think about how important hydration is to your body's systems (Read Cody Lundin's "98.6 Degrees" book and you will know more about the subject than you ever wanted to), shelling out $80 to have clean, safe water on-demand anywhere you can find a water source is a small price to pay.
Tips:
-Put a coffee filter over the hose inlet and secure it with a twist-tie, rubber band, or fishing line. This will make your MSR filter pump more efficiently for longer without as-frequent element cleaning. Everytime you clean the element, you are scrubbing away some of the element's overall diameter. When it gets too thin, you have to get a new element. Fewer cleaning cycles = prolonged filter life and more money remains in your pocket. Filter element, $40. Coffee filter, 3 to 4 cents.
-Bring a spare filter element if you are going on an extended trip or are going to be absolutely dependent on this filter for your drinking water while you are out! Meaning: hiking back to your vehicle and driving like a madman to the nearest 7-11 for a drink before you go into a coma from dehydration is not going to be an option! The word is, these ceramic elements are fragile. Finding this out at the wrong time and being caught without a spare would be a very bad thing. If you spent the cash for the filter and other people in your party use it, have them pony up the $40 and buy the spare element for you. It's only fair.... right?
-USE A NALGENE BOTTLE WITH THIS UNIT (or other similar one that will attach to the adapter). The motion created while you are pumping is far too violent for precision-aiming the output stream into any loose container, except for a bucket. You can also attach another length of rubber hose to the outlet and run that to your container, but we have not tried this yet. The Nalgene bottle seemed like the simple solution to use with the filter and we filled our other containters from this bottle.
{Product use update} - Our party of 3 did a 4-day backcountry hike in the Grand Canyon (search: Tanner Trail) this past winter. This is definitely NOT a tourist trail, and the first 2000-3000 ft of elevation is not much a trail at all. The noted only water source along this entire route is at the very bottom of the canyon, the Colorado River. We were able to augment our hike-in water supply by searching for pools of water trapped in depressions of the rocks near the places where we made camp, and pumping water from them using the MSR Miniworks. I don't even want to think of what was in those water pools, but what came through the filter was clean and refreshing. We made notes of the larger water pools, which allowed us to lighten our water load on the hike-out and stop by the pools for a top-off when we needed it.
152 of 154 people found the following review helpful
Color Name:-|Size Name:One Size
This is a great filter that I have used on many hiking trips. It pumps fast and is very handy. At 16 oz. it is not the lightest filter on the market but it's design makes it very field maintainable. This filter has one annoying weakness that can leave you in a world of hurt when deep in the wilderness. The ceramic filter element is very fragile. I have broken two with no trouble at all. At $35.00 to $40.00 a pop to replace, it is something to keep in mind, be very careful when cleaning the element.
58 of 63 people found the following review helpful
By Pete S.
Color Name:-|Size Name:One Size
The MSR MiniWorks is a fantastic water filter. I've used it while camping and hiking in the wild, as well as in the US Army with some really funky water from old pipes.
While it doesn't remove all the bad taste of the funky water, it certainly removes harmful bacterial, cysts, and protozoa. I don't believe it's rated to remove viruses, but boiling certainly will. I've used it in clear and cloudy lakes, rivers, and streams and haven't gotten sick. Definitely worth the money.
While it doesn't remove all the bad taste of the funky water, it certainly removes harmful bacterial, cysts, and protozoa. I don't believe it's rated to remove viruses, but boiling certainly will. I've used it in clear and cloudy lakes, rivers, and streams and haven't gotten sick. Definitely worth the money.
Most Recent Customer Reviews
5.0 out of 5 stars
For Go/Hicking bag
Item came as described, arriving quickly. Packaged as if bought of shelf in store. I have not used the item yet, nor plan to in immediate future. Read more
Published 1 day ago by Collin Parkhurst
5.0 out of 5 stars
Love this thing. Peace of mind in the field.
If I could marry this thing I would. Here is my breakdown:
PROS
1. Super lightweight. I used to have the old version which was .5 lbs heavier.
2. Read more
PROS
1. Super lightweight. I used to have the old version which was .5 lbs heavier.
2. Read more
Published 7 days ago by Stephen G. Bialecki
5.0 out of 5 stars
Nice product
I haven't used this yet but I do like the design. I'm as happy with it as I can be without using it.
Published 10 days ago by Ron D.
5.0 out of 5 stars
camping
I do alot of wilderness camping, usually in places like Wisconsin,Colorado,Montana, Wyoming, & S. Dakota, and need to be able to provide drinkable water if I run short. Read more
Published 15 days ago by noctislupus
5.0 out of 5 stars
Excellent Filter!
I bought this filter quite sometime ago, but waited to see how well it held up before leaving a review. Read more
Published 26 days ago by Matt
5.0 out of 5 stars
This is now my favorite water filter
It works 100% of the time every time. You do have to stay on top of maintenance, but what valuable piece of equipment do you have that doesn't. Read more
Published 1 month ago by Durrrrrr
5.0 out of 5 stars
Love It
Fits my nalgene wide-mouth bottle so I don't have to struggle with keeping the hose in the bottle and sanitary. Read more
Published 1 month ago by Morgen F. Benner
5.0 out of 5 stars
great
I go hiking a lot and for the price I love this, I put a coffee filter over the intake to keep clean up to a min
Published 2 months ago by geno7054
5.0 out of 5 stars
Great purifier
I've used this several times on hiking trips and haven't gotten sick once... must be working. Hooks up to my wide-mouth nalgene bottle and fills it right up. Can't complain.
Published 2 months ago by Austin Haynes
5.0 out of 5 stars
Works of course!
Used last weekend out in the woods. Worked great as expected. A little pricey, but worth it in the long run!
Published 3 months ago by Jimmy Wilson
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