Katadyn Hiker Pro Water Filter North America, Inc. Removes bacteria, protozoa, cysts, algae Filters out chemicals & improves taste Easy fill bottle Adapter/pre filter/bag Compatible with hydration systems Lightweight and easy to use Ideal choice for backpackers with it's ultra-light, compact size and compatibility with hydration bladders Quick-connects makes it easy to pack up hoses The 0.2 micron glassfiber filter media is designed for high output with little effort Activated carbon in the core of the filter improves the taste and reduces chemicals in your drinking water The field cleanable Filter Protector Screen extends the life of the cartridge in challenging conditions.