![20mm Vial Stopper, 3-Leg Lyophilization Style, Pack of 100](https://voigtglobal.com/1210-large_default/20mm-vial-stopper-3-leg-lyophilization.jpg)
20mm Vial Stopper, 3-Leg Lyophilization Style, Thin Flange, Pack of 100
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20mm Vial Stopper, 3-Leg Lyophilization Style, Pack of 100 Constructed with a thinner flange than most stoppers to achieve a deeper crimp using standard seals.
20mm stoppers are for serum vials with a 13mm hole opening and 20mm outiside rim to rim diameter.