
TRF690 · 10
QUICKFIT · Cat: TRF690
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dwk.com/quickfit-stopper-hollow-blown-hexagonal-top-drip-tip...Description
Stopper taper complies with ISO 383 | Manufactured from 3.3 expansion borosilicate glass complying with ISO 3585 ASTM E-438 Type 1 Class A | Hollow-blown construction to reduce weight | Hexagonal head prevents the stopper from rolling and provides good grip | Top of the stopper is flat or slightly concaved allowing them to be stood on end to avoid contamination of the ground surface | The drip tip encourages any liquid on the stopper to drip back into the flask