Reliable single or multi-channel Colloidal Silver Generation Auto-shutoff selectable from 5 to 25 PPM Precisely regulated Constant Current electrode drive for consistent particle size Alternating Electrode Polarity minimizes electrode buildup Scalable output for higher volume or reduced generating time -just add more electrodes and units High quality/High reliability, state of the art design Made in USA Electrode Assemblies are standardized and compatible with all Silver Moon Colloidal Silver Generator models