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The best-selling filter on the market, delivering long-lasting, fully field-maintainable water filtration.
The MiniWorks EX microfilter is the worldwide best-selling microfilter, delivering long-lasting, field-maintainable water filtration in demanding environments. Engineered for frequent and heavy use, it utilizes our workhorse Marathon™ EX carbon/ceramic element to ensure clean, reliable and taste-free water. Thanks to its innovative AirSpring Accumulator™, it’s capable of pumping one liter per minute and the flow rate can be renewed easily and repeatedly in the field—no tools required. It’s lightweight and compact and, most importantly, been proven reliable by thousands of adventurers just like you.
The MiniWorks EX microfilter is the worldwide best-selling microfilter, delivering long-lasting, field-maintainable water filtration in demanding environments. Engineered for frequent and heavy use, it utilizes our workhorse Marathon™ EX carbon/ceramic element to ensure clean, reliable and taste-free water. Thanks to its innovative AirSpring Accumulator™, it’s capable of pumping one liter per minute and the flow rate can be renewed easily and repeatedly in the field—no tools required. It’s lightweight and compact and, most importantly, been proven reliable by thousands of adventurers just like you.
- Testing: Meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water.
- Reliable: Durable carbon/ceramic element ensures safe, taste-free water—even with frequent, heavy use.
- Field-maintainable: Can be cleaned repeatedly for full filter recovery with no tools required.
- Fast Flow: AirSpring Accumulator™ increases filtration speed; up to 1-liter per minute.
- Better-tasting Water: Carbon core removes unpleasant tastes and odors caused by organic compounds, such as iodine, chlorine, and pesticides.
Made in the U.S.A. of U.S. and Imported Materials
Easy Returns
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Return Policy
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At Ascent Outdoors we’re committed to your satisfaction as a customer. We hope to work with you to find the right outdoor products for your adventures!
Online and In-Store Return/Exchange Policy:
- New and unused items in original packaging with tags still attached may be returned within 365 days to receive a full refund, exchange, or store credit. Exceptions apply: See the Garmin policy below.
- Used items may be exchanged for store credit within 30 days of purchase. Shipping fees apply for online orders. Exclusions to Garmin and rock climbing hard and soft goods. If you’re not sure please email us before purchase.
- For your safety, rock equipment including but not limited to rock climbing hardware, harnesses, slings, and ropes cannot be returned at any time. Helmets and shoes may be returned unworn, with tags and in original packaging.
- Please note we charge both sides shipping fees for returns or exchanges for online orders.
Garmin Return/Exchange Policy:
- Please note that Garmin Devices and Watches must be unopened and in their original packaging with tags attached.
- They may be returned within 90 days to receive a refund, exchange, or store credit
- Once taken out from the box or activated - devices/watches cannot be returned or exchanged.
- For any manufacturing defects with your Garmin Device, we can connect you with Garmin Customer Support to facilitate the warranty process and to help troubleshoot the issue.
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