Filter Overview All Products x Applications All Outdoor 129 Marine 84 Tactical 85 Emergency Preparedness & Relief 104 Humanitarian Aid 91 Gravity Water Filter (HWTS) 4 Remote Communities 7 Commercial 50 Solutions Water 91 Brands Katadyn 32 Micropur 2 Spectra Watermakers 57 Effective against Bacteria 4 Cysts 4 Protozoa 4 Sediments 5 Water Source Clear Water 12 Muddy water 5 Salt Water 11 Tap Water 3 Group Size 1 5 2-5 5 > 10 16 Usage daily 16 often 9 rarely 2 Operation powered 8 solar powered 1 Find Spare Part Humanitarian Aid Sustaining life no matter where. The Katadyn Group has the broadest portfolio of products and technologies for drinking water treatment on the market. Humanitarian aid organizations and WASH coordinators rely on our products to ensure the supply of clean drinking water regardless of location, water source and population size. Projects & Case studies Plankton Filter Housing Kit Effective Against Plankton Blooms, Red Tides and other Challenging Feed Water Sources discover UV Sterilizer 12v Disinfects Water and Kills Virus and Bacteria discover UV Sterilizer 24v Disinfects Water and Kills Virus and Bacteria discover 10,000 Hour SP-20 Pearson Pump Rebuild Kit discover 10,000 Hour SP-5 Pearson Pump Rebuild Kit All Internal Components for Rebuilding a SP-5 Pearson Pump discover 2,500 Hour SP-20 Pearson Pump Rebuild Kit All Seals for Rebuilding an SP-20 Pearson Pump discover 2,500 Hour SP-5 Pearson Pump Rebuild Kit All Seals for Rebuilding an SP-5 Pearson Pump discover 2.5x20 Replacement Membrane Kit New Membrane and Seals Included in Kit discover 2.5x40 Replacement Membrane Kit New Membrane and Seals Included in Kit discover 20 Micron Filter Element Protect Pump and Membranes by Replacing Filter Cartridge Regularly discover 4x40 Replacement Membrane Kit New Membrane and Seals Included discover 5 Micron Filter Element Protect Pump and Membranes by Replacing Filters Regularly discover 1 2 3 4 5