Pipette Bulb Single ball without net

Material Rubber For automatic burettes and flash chromatography columns This pipette bulb single ball (also called a rubber blow ball, rubber bellow, or Richardson bulb) for an automatic burette is a hand-operated flexible pump used to safely push air into a reagent reservoir bottle. This air pressure forces liquid up through a connecting tube to automatically fill and zero an automatic (self-zeroing) titration burette.