Pipet Filler, 3-Valve

Easy “1-2-3” operation. Squeeze the “1” valve to discharge air in top bulb. Squeeze valve “2” to draw up sample. Squeeze valve “3” to dispense. Fits all standard-sized pipets. Durable silicone for long life. Meets OSHA requirements. Accommodates pipettes up to 50mL and has a 1.4 in diameter opening.