The GeneralAire GA 7421 is the correct return duct replacement for the following dehumidifier models:
The GeneralAire DR14 Dehumidifier Return Duct is a replacement return duct for the GeneralAire 1300 Whole House Dehumidifier. A return duct is essential for drawing in moist air with your dehumidifier and helps the GeneralAire 1300 operate at its peak performance. This HVAC return duct is made from high quality construction material and is built to last.
GeneralAire DR14 Dehumidifier Return Duct specifications: