Filter Overview All Products x Applications All Outdoor 1 Emergency Preparedness & Relief 4 Humanitarian Aid 4 Gravity Water Filter (HWTS) 4 Remote Communities 7 Solutions Water 4 Brands Katadyn 4 Effective against Bacteria 3 Cysts 3 Protozoa 3 Sediments 3 Water Source Clear Water 4 Muddy water 3 Group Size 2-5 2 > 10 4 Usage daily 4 Find Spare Part Gravity Water Filter (HWTS) Ceramic elements-based water filtration systems with integrated HWTS as a simple, effective and sustainable solution for the temporary or long-term supply of families and small communities with clean drinking water - even off the grid. Projects & Case studies Katadyn First Response Gravity Filter 3L Katadyn First Response Gravity Filter 3L is an emergency filter for families and small groups in temporary need of water filtration solution. discover Katadyn Rapidyn DIY Filter Kit This product is only available for humanitarian aid organizations. The Katadyn Rapidyn DIY Filter Kit is an emergency filter for small to large groups who need clean dri... discover Katadyn Rapidyn Gravity Filter 10L This product is only available for humanitarian aid organizations. The Katadyn Rapidyn Gravity Filter 10L is an emergency filter for small to large groups who need clean... discover Katadyn Drip Filter Ceradyn Katadyn Drip Ceradyn is a self-contained water filtering station for large amounts of water. Suitable for groups of 10 or more and for extremely dirty water. CHF 449.00 add to cart