Fixed Volume Control Knob,
Chemglass Fixed Volume Control Knob,; Fixed Volume Control Knob, 500µL, Fits Pipettes with Ajustable Volume: 100-1000µL, Each - CHMGLS
Chemglass Fixed Volume Control Knob,; Fixed Volume Control Knob, 500µL, Fits Pipettes with Ajustable Volume: 100-1000µL, Each - CHMGLS