rotarus® MKF 60-16-2-4, 2-channel pump head, 4 rollers. New hybrid pump head made of durable PPS plastics for continuous feeding or precise dispensing of target volumes with sturdy tubing cassettes with built-in tubing retainer as well as fixed distance between rollers and tubing bed for the use with regular pump tubing without stoppers in a multi-channel pump head. One of the two MKF-60 adapter-sets is necessary to attach the pump head to the Hirschmann rotarus® drives.