Caleffi’s NA570 Series HYDROFILL is a convenient tool enabling contractors to use jobsite water to produce ideal-grade demineralized water at an economical cost per gallon. The portable water treatment filling units remove scale-forming hard water minerals, such as calcium and magnesium, from jobsite water. Salts and other soluble minerals are eliminated to prevent reduced efficiency and premature equipment failure due to scale buildup or galvanic attack.