20mm Vial Stopper, 3-Leg Lyophilization Style, Thin Flange, Pack of 100

20mm Vial Stopper, 3-Leg Lyophilization Style Vial Stopper, Pack of 100. Thin top flange - beneficial when crimping onto difficult vials with a thicker top crimp rim or when the vial seal has a shorter than ideal aluminum skirt.
Manufactured in the USA using chlorobutyl rubber. Meets USP Class 6 - sold in packs of 100 pieces.
All stoppers require appropriate washing, rinsing, and sterilization, whenever applicable, to meet industry specific requirements. We do NOT sell this particular stopper in a sterile version.

20mm vial stoppers are for serum vials with a 13mm hole opening and 20mm outside rim-to-rim outer diameter.