B12/21 PE STOPPER, Pack of 10

QUICKFIT PE STOPPER 12/21 
 
Replacement plastic stoppers
These polyethylene 'B' length stoppers are idealy suited for use with volumetric flasks and mixing cylinders
 
Ideally suited for use with glass or plastic volumetric flasks and measuring cylinders etc. which have longer 'B' length sockets
Manufactured from polyethylene
Large head provides a good grip and gives protection if glassware is accidently knocked over