Product Name Unit Price Qty Subtotal Remove

Your Current Subtotal

$ 0.00

Questions on SteriPen Pre-Filter

Sort by Descending
  • From Gary at 10/2/11 7:01 PM
    • How long can I expect this to last?
    • Thanks for the question Gary. How long this pre-filter lasts really depends on the typical water quality and frequency of use. If you regularly pre-filter silty water, then it's probably only going to make it through a season. You can clean them out with fresh water and a toothbrush to add some life to the cartridge, but you'll know when it's time to replace it...your Nalgene will be painfully slow to fill.
    • Do you find this question helpful?  Yes   No

Ask Your Own Question

Back to the product page

SteriPen - SteriPen Pre-Filter

Price: $12.95
 | Backordered - Ships in 7-10 Days

Quick Overview

Get the floaties out of your water!
SteriPen Pre-FilterSteriPen Pre-Filter
Move your mouse over image or click to enlarge
SteriPen Pre-Filter SteriPen Pre-Filter Filter component
The SteriPen Pre-Filter is perfect for getting sediment, bugs, and other assorted floaties out of your water before you purify it with UV light, giving you clean, healthy water to drink just about anywhere. Fits perfectly onto a widemouth Nalgene bottle or any other 63mm-mouth bottle, including widemouth Klean Kanteens, Camelbak, and MSR bottles. The Pre-Filter also helps protect the bottle threads from contamination by untreated drops of water.
Manufacturer SteriPen
Weight 1 oz.
Mfg Sku/Part Number SP-PF
Treatment Type Other Accessories
Micron Rating 40
Other Features Gets the floaties out!
Intended to be used with the SteriPen, not on its own. It is not effective against cysts, bacteria, or viruses.
Product Reviews
Product Reviews
Questions and Answers


Backcountry Gear gets it: camping and hiking gear should help get you out into nature while not weighing you down with what it takes to get there. Your outdoor adventure shouldn't be hindered by heavy kitchenware, overwrought backpacks, or complicated camping tents. Get equipped with the right gear, but not too much. It's about efficiency and versatility, minimum weight for maximum benefit. Backcountry Gear, where minimalism meets productivity.

Backcountry Gear knows lightweight backpacking is all about keeping things compact and sensible. Hiking gear should be sturdy, reliable, and lightweight. Camping tents should be constructed of lightweight, durable materials, and be easy to assemble. Kitchen kits should be featherlight and easy to clean. Trekking poles should keep you balanced. Accessories like medical kits should be comprehensive and intuitive. We understand, and we understand not every hiker is the same.

Our inventory has a backpack for every pursuit. We have ultralight daypacks, hydration packs, packs for kids, duffles, and child carriers. No one gets left out. We have dog packs, lumbar packs, dry bags, travel packs and luggage, courier bags, shoulder bags, and external frame backpacks. They’re all engineered by the best in their fields with features that make getting to what you need rapid and simple.

Backcountry Gear has reliable ultralight stoves and titanium cookware to make cooking a cinch and camping a treat. Canister stoves or liquid fuel stoves, we have one right for you. Boil water quickly with Jetboil's Sol and MSR's Reactor, or go ultralight with MSR's Micro Rocket and Primus' Express Stove. Keep weight down with ultralight titanium pots, pans, and utensils from Snow Peak and Evernew and keep going.


For multi-day hikes, Backcountry Gear has go-to water treatment options for every water source. Pump and be sure with MSR's Hyperflow Microfilter or Katadyn's Hiker Pro Microfilter. Or avoid chemicals and pumps altogether with gravity filtration systems from Platypus or UV sterilizers from Steripen.


Headquartered in Eugene, Oregon, Backcountry Gear has the best camping and hiking gear from the global industry leaders Osprey, Western Mountaineering, and Sierra Designs. We stock the best in sleeping bags, lightweight tents, and ultralight backpacks, too. When you plan for the outdoors, plan on, your first stop for outdoor adventure. Every step of the way.