Mountain Equipment Company

SteriPen Bottle Fits All Pre-Filter


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Rocksolid guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, electronics, undergarments and swimwear excluded).
Really. If it's not up to snuff after you use it (a couple times) you can still bring it back. It lasts longer than 30 days, but not forever. We'll be fair about it.


This filter removes particulates from your water before you purify it with a SteriPEN or other system. It makes the water more pleasant to drink and can reduce purifying times.

  • Made of flexible plastic
  • Filter screen is 40 microns
  • Funnel fits a wide range of bottles, including narrow-mouth canteens or soft-drink bottles
  • Filter cup fits wide mouth bottles and works as an adapter for SteriPEN Journey or Classic so they can be used with wide-mouth bottles
  • Dimensions are 9 x 9.5 x 7cm

Tech specs

Ideal for
  • Travel
Made inChina

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