SteriPEN Water Pre - Filter
When you can't find clear water, this amazing pre - filter steps in. It has a 40 - micron filtration screen that efficiently filters out particulates and debris from water. After that, you can use UV light to effectively kill the microorganisms in the water.
It creates a watertight seal with Steripen® Classic 3 and Steripen® Ultra™ and fits most wide - mouth water bottles. This means you can easily use it with your existing water containers.
Using it is a breeze! Just pour water through the tough 40x40 micron screen filter cartridge to fill your bottle. Then you're all set to purify the water with a Steripen UV water purifier. You can fill your water bottle in two ways: by pouring water through the filter or by immersing the bottle in water and letting it fill through the filter.
Features:
- Filters out large particles from river or lake water, making the water safer to treat further.
- Comes with a durable 40 - micron screen that can withstand regular use.
- Can be attached to most wide - mouth water bottles for convenient use.
- You can either pour water in or submerge the bottle to fill it through the filter, offering flexible usage options.



Using the SteriPEN Water Pre - Filter is easy. First, if you're using the pour - through method, simply hold the filter over your wide - mouth water bottle and pour water through the 40x40 micron screen filter cartridge. If you prefer the immersion method, submerge the filter and the bottle in water, and the water will fill the bottle through the filter. After filling, you can use a Steripen UV water purifier to purify the water. As for maintenance, after each use, rinse the filter with clean water to remove any remaining particles. Store it in a dry place. Be careful not to damage the 40 - micron screen, as it's essential for filtering. Also, make sure the filter forms a good seal with your Steripen Classic 3 or Ultra before use to ensure a watertight fit.