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 Semiconductor Grade Deionization cartridges provide demineralized water with a resistivity between 14-18 MΩ. They are ideal for high-tech applications and other processes requiring high purity water for washing, rinsing, scale control, or final polishing. Sized to fit standard slim and BB housings.