The CHEM-FEED® MD1 Multi-Diaphragm Chemical Metering Pump does not lose prime when pumping chemicals that off-gas, thanks to the exclusive hyperdrive technology which allows for nearly pulse-less chemical feed. This low-maintenance pump can dose chemicals against high pressures, unlike most peristaltic pumps. In addition, it communicates with Blue-White’s S6A and Micro-Flo flow verification sensors.