Pipette Filler Rubber Bulb (2 Sizes)

Pipette Filler Rubber Bulb (2 Sizes)

It's efficient for one-handed operation.meet your needs perfectly well,such as control air evacuation, uptake and dispense liquids,etc
2pcs natural rubber made lab pipette filler bulbs with 3 Valves
Sizes of pipet bulb:5.4cm(2.1'')in diameter, 13cm(5.1'') in total length.
Accommodates pipettes up to 50ml.
The pipet filler is made of natural rubber, and has three valves that each containing a chemical-resistant stainless steel ball.