Safety pipette bulb Howorka-Ball®

Safety pipette bulb Howorka-Ball®
-no rigid connection with tube
-no valves or side vent on tubes
-suitable for all standard tube diameters, including pipettes, burettes, filter tubes etc.
-no unstable air pockets
-long operational life due to durable components
-Easily cleaned and steam sterilized if contaminated with liquids