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Pre Filter Steripen

Item Code: SP-PF

Availability: Shipping Details


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Pre Filter Steripen: When clear water is not available, use the Water Bottle Pre-Filter by SteriPEN.

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Pre Filter Steripen

Pre Filter Steripen: When clear water is not available, use the Water Bottle Pre-Filter by SteriPEN.

Pre Filter Steripen Specs:

  • Use the prefilter to provide clear water, which in turn can be purified using the SteriPEN™ Water Purifer or other purification methods
  • Prefilter screen has a square aperture equal to 17 square microns
  • Replacement cartridges available
  • Please note: Prefilter will not fit the SteriPEN Adventurer or Traveler but can still be used as a basic pre-filter

Pre Filter Steripen: The Pre-Filter filters out particulates and debris. Fits on Nalgene® and wide-mouth water bottles.

Pre Filter Steripen: Because the penetration of Ultraviolet (UV) light can be limited by debris, it is important that water be clear prior to SteriPEN treatment.
Pre Filter Steripen:Threaded for screw-top connection to the top of your Nalgene water bottle, the SteriPEN Water Bottle Pre-filter easily and efficiently removes particulates and debris, allowing the UV light of your SteriPEN to effectively treat water.

Steripen Website


In stock items will ship within the next business day. Available item(s) is/are available to order. Most available items will ship within 9 business days, sometimes the process is faster and of course it will ship to you ASAP. There might be some exceptions, example: supplier is out of stock or manufacturing delays. If you have any doubt your item is in stock please call us at 303-984-4649.

For shipping rates and/or international shipping rates and policies, please click here.



If you placed an order at 123Mountain and you don't like it just send it back for a refund, applicable for the item not shipping costs*. Ship it back and as long as your item is in unused condition with original tags, boxes, etc.  Please follow the steps at Return Policy Page.

No returns on sale / promotional / discounted item(s).

* Even if the shipping was free we paid the carrier for the service provided and we will deduct $7.95 for Economy, $12.95 for Ground, etc.



Not stoked on your gear? Looking to return it? No problem, we have an Unlimited Return Policy as long as item(s) is/are in UNUSED CONDITION. We try to guarantee complete satisfaction with unlimited lifetime returns. If at any time - now, next month, in 30 years - you're not 100% satisfied, send your gear back for a refund. No questions asked. Check out Return Policy Page here. No returns on sale / promotional / discounted items, though.


We need your help to always make sure 123Mountain has the best prices! You may even benefit in the process. If you find an identical product at a lower price and in stock through another online site we will refund two times the difference.

Here's how it works:
•    Place the order on at our current price.
•    Email us within 24 hours that you are requesting a price match, including a link to the site where you saw the lower price.
•    We will adjust the price and take care of your refund.

For further information please go to 100% SATISFACTION page.


We offer three types of membership; Elite, Premium and Standard. Each membership group has fantastic advantages everything from store credit to an extra 10% OFF and FREE shipping.

Find out more which membership level that fits you the best, click here.


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