Ideal for producing small quantities of very pure water. Batch feed or line feed. Flexibility and purity at a reasonable price. All units have microprocessor controlled purity monitors, temperature compensated. Recirculation pumps assures purity without wasting valuable water. Water exceeds all ASTM, NCCLS and CAP Type I standards. Resistivity up to 18.3 megohm-cm. Total organic carbon less than 5 ppb. Feedwater should be pretreated by RO, distillation or deionization. The resservoir feed system has an integral 6.5 Liter feed reservoir. Fully portable, as no permanent plumbing connections are necessary. Line feed models require minimum 30(psi)g. Overall 12-1/4W x 18-1/2D x 18-1/4H inches. For 110V. Order cartridges separately.