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The Marathon EX Ceramic Element is the replacement filter element for all MSR MiniWorks, WaterWorks and WaterWorks II water filters. Included with the Marathon Ceramic Element replacement is a ceramic gauge, scrubbing pad and instructions.
The MSR Marathon EX Ceramic Element is the replacement filter element for all MSR MiniWorks, WaterWorks and WaterWorks II water filters. Included with the Marathon Ceramic Element replacement is a ceramic gauge, scrubbing pad and instructions.
Replace or upgrade your old MSR element with the EX Ceramic Element.

Replacement ceramic element for the MSR MiniWorks and WaterWorks filters.

Replacement ceramic element for MSR MiniWorks and WaterWorks portable filters.

Replacemet filter for the MSR Miniworks EX and Waterworks microfilters.
| Filter Element Duration: | >100 gal. |
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| Filter Element Type: | Ceramic |
| Pump Rate: | 1.5 pints/min. |
| Weight: | 4.2 ounces |
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View other products from MSR classified in Hiking & Camping > Water Treatment. View all products from MSR.
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Sometimes, we can't be sure that the product is the same across the stores that offer its, so you may find the same product listed more then once on GearBuyer.com, we these list highly similar products below.
| MSR Marathon EX Element | $39.95 | |
| MSR Marathon EX Replacement Filter | $39.95 | |
| MSR Miniworks Waterworks Ceramic Element | $39.95 |
These are products that have been indicated being comparable to this product:
![]() | MSR SweetWater Filter Cartridge Hiking & Camping > Water Treatment | $34.95 - $39.95 |
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Great long lasting cartridge | |
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| Good filter not the lightest but certainly the best. The filter does clog easy but compared to other filters it removes dirt and bacteria out of the water. Ive never had bad taste come from the filter. The problems with this filter are that it can freeze and crack. I had the filter crack from frozen water on a winter hike. It cracked in the seam under the black part so I did not notice it. Do not use this filter below 32'F. Also the filter is ceramic and if droped it can shatter. I havent had it shatter while it was inside the filter housing. | |
| armyranger10a at REI on 01/13/2009 | |
Part of a great water system | |
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| Don't forget to take it out to dry during the off-season. | |
| JimBrokenWaters at Mountain Gear on 08/27/2008 | |
$$$$ | |
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| [...] | |
| Liability at REI on 09/28/2008 | |
Good choice for 3 seasons | |
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| I've used this filter for day trips and extened over nighters. I recommend frequent cleaning during and after use. Be careful, the ceramic cylinder will freeze and crack, rendering it useless. Replacement cylinder is not cheap. Not recommended for winter camping. | |
| FlyPatch at REI on 05/11/2009 | |