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IEC Modular Base-Bulkhead (Control)

Place to control loss of oxygen. Works as the control for the whole bulkhead system and is required for them all to close automatically without any setup. All bulkheads open and close in unison. Rename bulkheads, make into separate group, and add to control panels for each bulkhead section if you desire to open individual bulkhead locations without opening them all. You do not need to group all the bulkheads to make them open and close together. They do that automatically.