![20mm Vial Stopper, 3-Leg Lyophilization Style, Thick Flange, Pack of 100](https://voigtglobal.com/1211-large_default/20mm-vial-stopper-3-leg-lyophilization-freeze-drying.jpg)
20mm Vial Stopper, 3-Leg Lyophilization Style, Thick Flange, Pack of 100
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20mm Vial Stopper, 3-Leg Lyophilization Style, Thick Flange, Pack of 100
Thickness of the flange on this 3-leg 3 prong stopper is the typical thickness for lyophilization freeze drying applications.
20mm stoppers are for serum vials with a 13mm hole opening and 20mm outiside rim to rim diameter.