The process used for removal of all dissolved salts from water is referred to as deionization or demineralization. Deionization requires the flow of water through two ion exchange materials in order to affect the removal of all salt content. Aries High-Capacity Twin Bed Deionization cartridges use ResinTech® are made up of strong acid cation (SAC) and weak base anion (WBA) resins in a two-bed, layered cartridge. While not yielding the resistivity of mixed-bed DI cartridges, “High Capacity” twin bed cartridges are an ideal alternative to mixed bed cartridges providing moderate ionic reduction without the corrosive characteristics. Sized to fit standard Slim and BB housings.