A modular kit of parts covers utility service lines extending from a bulkhead
to
a mission module. The kit includes a standard-length U-channel with a baseplate
and upstanding sides. The baseplate defines one or more longitudinal slots, each
of which defines a given width. A cover is provided. The kit also includes a divider
having a protruding edge portion dimensioned to be accommodated in the slot. One
embodiment includes a tee-shaped protrusion for use in a tee-shaped slot, and another
embodiment includes a stress-reducing flange.