The Steripen 40 micron Sediment Pre-Filter is specially designed to fit wide-mouth Nalgene type bottles as well as most water bottles, providing a effective solution for filtering water from sediment before using a Steripen UV purifier. This pre-filter plays a crucial role in preparing the water for optimal disinfection, allowing UV rays to more effectively target remaining microorganisms.

Its use is remarkably simple and quick : simply screw the pre-filter cap onto your bottle and immerse it in water, such as a river or lake. The filter acts autonomously, without the need for additional effort, capturing sediment and impurities as soon as water enters the bottle.

In addition to its usefulness with Steripen purification systems, this pre-filter is also compatible with Katadyn micropur purification tablets , improving their effectiveness in already clear water. This feature makes it extremely valuable to hikers and travelers who rely on natural water sources.

Cleaning the pre-filter is also easy. After use, simply rinse it with plenty of water under a tap to remove residue and sediment retained in the filter. The Steripen Classic 3 purifier model, often sold with this pre-filter, fits directly inside, further simplifying water treatment on the go.

This pre-filter is an essential piece of equipment for any outdoor enthusiast, ensuring clearer, safer water for your adventures.