Yes, Triton 20’FR can be bundled by 7 and, 40’FR can be bundled by 4 in such a way that the bundles will be within the ISO measurements of a 20’DC and 40’DC respectively.
Yes, all Triton Open Top Containers have swingable/removable door headers.
Yes, all Triton 45’PW (dry and refrigerated) are accepted for transit on UIC member railways.