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  1. #1
    Join Date
    Jun 2008
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    5/8 to 3/4 tubing

    Just asking - My 25 year old Goodwin AC went out the other day and will need to be replaced - however the old unit had 5/8 tubing and the AC guy said it needs to be replaced with 3/4... is that true??? It's the upstairs unit and the lines go through 2 floors.

  2. #2
    Join Date
    Mar 2005
    Suppy NC
    Post Likes
    yes if your guy says this is what is needed then you have your answer since we dont know brand or size.

    he wants to do it right so let him

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