GEH Wasserchemie GmbH is the inventor and manufacturer of Granular Ferric Hydroxide for water treatment. Since our company was founded in 1997, we have been a world leading provider of iron-based adsorbents. Developed for the removal of arsenic in drinking water treatment, GEH is now also used in many other applications. These include the treatment of mineral water, rainwater, surface water and waste water. In addition to arsenic, other impurities like vanadium, phosphate, copper, zinc and others can be removed. We manufacture our products at our company headquarters in Osnabrueck, Germany, and deliver worldwide. Thanks to our long-term international partnerships, we can guarantee an optimum on-site service, as well as being present for our customers across the globe.