Kimble/Kontes Pipet Sero Ps 5X.1ML 200/CS 56900 5110 Pipet Sero Ps 5X.1ML 200/CS. 1ML 200/CS Case of 200 - Kontex pipets are pipets with positive displacement glass valves. Sero means "servo" and "safe". They may be used for aspirating dispensing...