MSR MiniWorks EX Backcountry Water Filter
- 1 liter per minute pump rate
- 2,000 liters per replaceable cartridge
- 99.9999% bacteria, 99.9% protozoa per NSF P231
- Carbon and ceramic filter, improves taste and odor
- 1 pound, 7.5 x 2.75 inches
- Limited lifetime warranty per bullets, specs say 3-year
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A rugged ceramic and carbon pump that also cleans up taste and odor, built for long trips and emergency kits. It pumps slower and weighs more than hollow fiber filters.
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ASIN: B0CQRVKT6CCategory: Camping Water Filters
Styles Available
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Overview
Backpackers and preppers who want water that tastes clean get a pump with a ceramic element and activated carbon in one replaceable cartridge. The MSR MiniWorks EX removes bacteria, protozoa, organic compounds and particulate, then feeds wide mouth bottles and bladders.
Carbon plus ceramic means better tasting water and an element that can be cleaned in the field, which suits long trips. The pump is slower and heavier, and the warranty terms differ between the bullets and the specs.
Who it's for
Expedition hikers, campers and households building emergency supplies will value the long cartridge life and taste improvement. Fast and light hikers should look at a lighter hollow fiber filter.
Pros and cons
- Carbon removes taste and odor
- Long life replaceable cartridge
- Ceramic element can be cleaned
- Change filter indicator
- Slower pumping than hollow fiber pumps
- Heavier than ultralight filters
- Warranty terms conflict in the listing
Performance notes
Pumping speed is limited by the dense ceramic element, which filters finely but resists flow more than hollow fiber. The carbon stage absorbs organic compounds that cause bad taste and smell. Turbid water clogs ceramic faster, so pre settling dirty water helps the rate.
Specifications
| Brand | MSR |
|---|---|
| Dimensions & fit | |
| Item weight | 1 pound (16 ounces) |
| Item Dimensions L x W x H | 5.5 x 2.5 x 7.5 inches |
| Capacity & performance | |
| Maximum Flow Rate | 1 liter per minute |
| Filter Life Cycle | 2,000 liters |
| Power & efficiency | |
| Power Source | Manual |
| Included components | |
| Included Components | Microfilter, Hoses, Caps, storage bag |
| Warranty & support | |
| Supported Water TDS Level Maximum PPM | 500 |
| Warranty Description | Limited lifetime per bullets, 3-Year Limited per specs |
| Other details | |
| Purification Method | Activated Carbon, Ceramic |
| Other Special Features of the Product | Change Filter Indicator |
| Removal rating | 99.9999% bacteria, 99.9% protozoa |
| Test standard | NSF Protocol P231 |
Frequently asked questions
How do I connect the MSR MiniWorks EX to my bottle?
It is compatible with a variety of wide mouth water bottles and hydration bladders, which are sold separately. Hoses and caps are included.
Does the MSR MiniWorks EX improve taste?
Yes. The carbon and ceramic filter removes organic compounds and particulate, giving taste and odor-free water, along with bacteria and protozoa.
How long does an MSR MiniWorks EX cartridge last?
One replaceable cartridge treats up to 2,000 liters of water.
What warranty does the MSR MiniWorks EX have?
The bullets list a manufacturer limited lifetime warranty while the specs list a 3-Year Limited Warranty. Confirm with MSR.