The Hydra Series is preassembled filtration system that allows the user to select housings that are specific to their application. The Hydra provides both convenience and flexibility in one complete package. A variety of systems are available from 1 to 3 bowl systems for slim to big blue style cartridges. Once the Hydra system has been selected, cartridges are chosen from the Aries Filterworks AF Series. AF Series cartridges include applications for drinking water, arsenic removal, deionization, sediment, and many other specialty medias.