This is for the ultra-low temp guys.
Has anyone came out with a replacement for R14? Only other refrigerant I know of in that range is R50 (methane).
If it is called R-14 , then it has methane in it like(R-12,R-11,R-22)
Is it a new replacement for CFC's?
Why should it be replaced?
What class refer is it?
Looks like it is still around.
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