« Last post by Todd on April 10, 2017, 06:24:14 PM »
Keith, did you ever come up with a solution for your install? I am in the same boat with 3x4 inch ducts in my wall. It looks to be strapped to the studs, so removal seems difficult. I am going to check on the price of getting a custom round to square transition built at a local duct shop. In the attic, strangely enough, it transitions at the top plate to 4" round pipe.