The pinch rings I use are Stainless Steel... not plated. They are
strong and do not rust.

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"-MIKE-" wrote in message ...
The cinch-clamps are steel and generally used in trailers and
double-wide
type prefab homes. That's not what I use and I've been told to stay
away
from them by the plumbing supply places.

Crimp rings are sold copper and will last as long as anything else, for
all practical purposes. Pex crimp rings allow for rotation of the
tubing
around the fitting but will not leak.


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