Abstract: A filter intended to remove pollutants from water in developing countries can include two stages connected in series. The first stage can be coconut derived activated carbon embodied in a bamboo housing and used to remove heavy metals and pesticides. The second stage can also be coconut derived activated carbon mixed with citricidal, and used to remove bacteria. Contaminated water traverses from the first stage to the second via gravity flow, resulting in water that is free of heavy metals and bacteria.