REL Matching Storage Box
One came with my '90 Westy but not matching, would have matched a tan
interior like say an '85.  It was being used for storage.  My PortPotti
probably would have fit into it but I store that differently, didn't need
the box so traded it for some Vanagon items I did need.  I''ve been told
that these boxes are standard issue in Europe for holding a toilet, the
toilet being either required or simply standard accessory there.  I know
several people that have such a setup either original or custom made and use
them as a seat when camped.  Seems to work for them but takes up to much
room for my taste.