Rigid fumigant barrier for shipping container door

A barrier system for use fumigating a product in a shipping container, the system comprising:

• a barrier insert comprising a barrier insert body, at least one air intake port at an upper position of the barrier insert body, said air intake port comprising a one-way flap to allow air to enter into the container via the port;
• a fumigant introduction line grommet through the barrier insert body to receive a fumigant introduction line for adding fumigant to the container;
• a connection flange for connecting an exhaust tube to the barrier insert;
• and
• an extension system connected to the barrier insert body to adjust the height of the barrier insert;
• wherein the extension system comprises an extension connected to the barrier insert body via a hinge and held in longitudinal configuration by one or more locking members.

A barrier insert door, comprising:

• a barrier insert body comprising a three-walled construction, said barrier insert body including a gasket around a top, a first, and second side edge, and a rubber brush gasket along a bottom;
• at least one air intake port at an upper position of the barrier insert body, said air intake port comprising a one-way flap to allow air to enter into the container via the port;
• and
• an extension system connected to the barrier insert body to adjust the height of the barrier insert.