Filter Overview All Products x Brands Katadyn 118 Micropur 13 Steripen 8 Optimus 51 Trek'n Eat 48 Spectra Watermakers 78 Applications Outdoor 72 Marine 22 Tactical 42 Emergency Preparedness & Relief 44 Humanitarian Aid 36 Commercial 15 Solutions Water 118 Effective against Bacteria 15 Bad taste 7 Chemicals 2 Cysts 15 Protozoa 15 Sediments 15 Water Source Clear Water 30 Muddy water 11 Salt Water 6 Tap Water 12 Group Size 1 21 2-5 20 > 10 12 Usage daily 16 often 27 rarely 2 Operation hand-operated 1 manually 3 powered 2 Industrial Water Treatment Category Desalination 1 Microfiltration 2 Find Spare Part Kit PS-40 Preventative Maintenance (12V) - DISC... DISCONTINUED discover Spare Filter Cartridge PowerSurvivor (5 Micron) discover PowerSurvivor Filter Cartridge 30 Micron discover PowerSurvivor 40E Extended Cruise Kit - DISCONT... DISCONTINUED discover Active Carbon Bottle Adapter discover Carbon Replacement Pack (2 pcs.) discover Filter Hose Kit for Pocket, Combi, Vario, Hiker... discover Expedition Inlet Hose discover EZ-Clean Membrane™ Filter Cartridge EZ-Clean Membrane™ Replacement Filter Cartridge for all blue Katadyn BeFree Water Filtration Systems. discover EZ-Clean Membrane™ Filter Cartridge - Black Edi... EZ-Clean Membrane™ Replacement Filter Cartridge for Katadyn BeFree Water Filtration System 1.0L, Black Edition. 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 New BeFree AC Replacement Cartridge - Slate Blue Works with all BeFree Systems (42 mm) except Gravity versions. discover 2 3 4 5 6