
The Pipette Pump Set of 3 by United Scientific is a set of three color-coded thumbwheel pipette pumps: 2 mL (blue), 10 mL (green) and 25 mL (red). Each pump has a soft elastic chuck with a threaded collar that grips glass or plastic pipettes, a quick-release lever and a thumbwheel for one-hand control. Teaching labs, QC benches and research labs use it to draw and dispense measured volumes without mouth pipetting.