"For the BEHR brand radiators there is the original version and now the
"BEHR Service" version. The service version is made in China and it is a
different core design. Round tubes with straight fins spaced close
together. "

New radiator arrived from GermanParts.Ca.    Box is labelled BEHR HELLA
SERVICE made in South Africa, year 2017.  It has flat tubes with
bent/corrogated fins, not round tubes with straight fins so will give it a
whirl and let you know how it goes.

g