Refigeration tubing is ID, Plumbing pipe is sized by OD.

--
Bob Pietrangelo


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"Wayne Whitney" wrote in message
...
On 2005-03-15, William W. Plummer wrote:

I made up a little spread sheet. It assumes 1/32" wall on the pipe.

Pipe is measured by ID, not OD. Tubing is measured by OD.

Wayne