Filter Overview All Products x Applications All Outdoor 107 Adventure & Sports 107 Caravaning 13 Travel & Health 10 Hunting & Fishing 109 Tactical 28 Emergency Preparedness & Relief 10 Humanitarian Aid 5 Solutions Water 22 Food 35 Cooking 50 Brands Katadyn 15 Steripen 7 Optimus 50 Trek'n Eat 35 Effective against Bacteria 5 Cysts 5 Protozoa 5 Sediments 5 Virus 1 Water Source Clear Water 19 Muddy water 4 Tap Water 7 Group Size 1 14 2-5 13 > 10 3 Usage daily 1 often 18 Series Vegan 2 Fish 1 Meat 15 Vegetarian 16 Allergens Gluten Free 10 Lactose Free 3 Packaging Pouch 35 Fuel Jet fuel 5 Diesel 5 Gas 17 Jet fuel 5 petroleum 5 white Gas 6 Pot Size < 1l 6 > 1l 2 Find Spare Part Adventure & Sports Whether hiking, camping, enjoying active sports or on an expedition, our solutions ensure safe drinking water is always within reach and healthy food is possible everywhere you go. Projects & Case studies Steripen Ultralight UV Water Purifier discover Steripen Ultra UV Water Purifier discover Steripen Aqua UV Water Purifier discover Steripen Adventurer Opti UV Water Purifier discover Steripen Classic 3™ UV Water Purifier discover Steripen FitsAll™ Filter discover Steripen Pre-Filter discover Camp Series Shower Adaptor discover New BeFree Gravity Upgrade Kit The BeFree Gravity Camp Upgrade Kit turns your Katadyn Gravity Camp or Base Camp Pro into a Katadyn BeFree Gravity Water Filter System. discover Active Carbon Bottle Adapter discover Fruit Mix discover Swiss Muesli with Milk discover 1 2 3 4 5