[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.