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Twintran tubing part of Entran II?
I have a customer that has Twintran installed in 1989, they are trying to sell the house and one of the inspection objections is the twintran tubing. The only stamp I can find is "UPC 2774 see boca research report number 87-51. Anyone have any idea if it is the dreaded Entran II? The install date is right, the color is right, but nowhere can I find a stamp that says Heatway on it, or Entran. Any help would be appreciated.
Thanks in advance!