Transition duct and sag frame details in AutoCAD, dwg file.
<p>This Architectural Drawing is AutoCAD 2d drawing of Transition duct and sag frame details in AutoCAD, dwg file. A transition duct is <strong>a short length of flexible material that is allowed to connect the clothes dryer to the duct</strong>. Nothing else. The requirements for dryer transition ducts are pretty short and sweet. Transition ducts must be a single length.</p>