Duane Bozarth wrote:

jzink0883 wrote:

Kitchen recently remodeled. Cabinet installer ran 20-feet of soft
copper tubing from sink to refrigerator. Not enough slack behind
refrigerator. I don't like the path of the tubing. It could be pinched
or broken.

I should have had a new copper-pipe supply line run from the kitchen
sink to the refrigerator. Now, it would be very difficult to sweat a
rigid line in the back of the new cabinets.

The McMaster-Carr catalog lists red brass threaded pipe (schedule 40,
WWN-351a, ASTM B43-91) and red brass threaded fittings.

Is red-brass threaded pipe appropriate for a rigid line from the
kitchen sink to the wall behind the refrigerator?

It'll work, but if you can do it, why can't you do the regular copper?
Other than some heat shielding for the soldering, you'll still need
access so that wouldn't seem to be the limiting factor...

Alternatively, how/where is the existing tubing run? Can you not
protect it to the point of the junction behind the refrigerator and then
add some additional line there for the accessibility?

And, one could also sweat threaded fittings onto solid and assemble them
if one were so inclined...

As SpeedyJim notes, the brass pipe is _way_ overkill for the job.