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About This Item
The MSR® MiniWorks® EX Microfilter provides field-maintainable water filtration when you need it most. The innovative AirSpring Accumulator™ allows one liter to be pumped per minute. The flow rate can be renewed easily and repeatedly in the field—no tools required. It has been engineered for frequent and heavy use with a lightweight, compact design.
Features:
AirSpring Accumulator™ provides filtration of up to 1 liter per minute
Durable ceramic element
Use during day trips or extended hikes
No tools required for disassembly
Removes unpleasant tastes and many chemical contaminants
I purchased my miniworks back in 1998 or 1999. Used it with no issues while working for a summer camp for a couple of years. Life took over and have been vehicle camping for years where I could take fresh water along. Fast forward to June 2024. Did a short notice 3 day hike and pulled the filter out of storage. Gave it a test the night before leaving and was having issues....but, I followed the field maintenance tips and BOOM, worked like a dream. Had no issues during the trip and was very happy with the performance! Will keep this filter as long as possible!! Thanks MSR.
Chris
1 year ago
First Time Fail
Bought to replace old Katadyn. Never able to use even once. Took from box and hit the trail. Went to use and missing hinge pin. Can’t even find anyplace online to reorder. Disappointed
Al B.
1 year ago
Good Filter But You Have To Keep It Clean
Bought several years ago, my not be a full liter a minute but close. I did find that i needed to take it apart and lube the o rings, and the antisyphion valve was folded over from the factory. That resulted in poor proformance out of the box. I used lip balm( beeswax based) to lube the o rings and it works well. If you have multiple bottles to fill, you may have to clean the filter while doing so. That simply means the filter is doing it job. Drain the water from the filter after use, good time for another scrub of the filter. I have used the gravity bags and will use them in camp, but who wants to carry 6l of water on their back. To be honest i have never gotten the rated number of gallon/ liters from a gravity filter, always clog up even with back flushing and very clean river/ stream water. Have a maint kit on hand, and a spare filter for long trips, as well as a back up filtration system. With a little TLC this is a great filter.
Mark J.
2 years ago
20 Years Later!!!
I bought this product in 2004 to hike part of the Appalachian Trail. Now older with young kids that want to camp I pull this thing out (always cleaned and dried after previous uses) and it worked flawlessly. No one is sick, water tasted great, and I’m glad to see this product still on the market!
Kevin (.
2 years ago
Algonquin Park
Its light, packable, fits wide mouth Nalgene bottles. Worked great for 6 day trip into the interior. No issues just clean water. I recommend this product. FYI purchase and prepare a backup filter just in case.
