"WARRENRN1" wrote in message
...
ok, ok..... i do not profess to know much about plumbing, but what are
the
different categories of copper piping... K, L, M.......

This is Turtle.

[ K ] Thicker harder to work being the choice of plumbers and some
refrigeration and 30+ ton hvac systems applications.

[ L ] Thinner easy to work being the choice of air conditioning people.


[ K ] Good stuff.
[ L ] OK stuff.

TURTLE