A containment tube is a greenish yellow energy tube that is used to contain individuals such as people and other EVOs for study.
When Breach released a T-Rex from the past, the group brought it in a large containment field to prevent further destruction to it and from it. Unfortunately not long after the dinosaur was contained it aged to dust.
The group does the same to Ben Tennyson after capturing him. Ben escapes by becoming intangable as Big Chill.
- 102. "String Theory"
- 219. "Lions and Lambs"
- 310-311. "Ben 10/Generator Rex: Heroes United"