Ductless Mini-Split Wall Sleeve
On a single zone ductless mini-split. What size should the wall sleeve be for the line set? I’ve read online with some saying 3″ and some even say 4″ to run the line set, condensate line, etc. It’s for a concrete wall so I want to make sure I have the right size sleeve as trying to enlarge the hole later is a very difficult process.
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