Fixed Volume Control Knob,
Chemglass Fixed Volume Control Knob,; Fixed Volume Control Knob, 5µL, Fits Pipettes with Ajustable Volume: 0.5-10.0µL, Each - CHMGLS
Chemglass Fixed Volume Control Knob,; Fixed Volume Control Knob, 5µL, Fits Pipettes with Ajustable Volume: 0.5-10.0µL, Each - CHMGLS