[13mm OD | Natural]
[20mm OD | Natural]
[30mm OD]
[13mm OD | Green]
The Tear-Off Unlined Aluminum Seal can be completely removed without using a decapping device giving access to contents. A rubber stopper with rubber formulations of gray butyl, natural rubber and silicone can be purchased separately. The aluminum seal can be attached to a serum bottle or vial with a Wheaton Crimper.