The GeneralAire 7072 is the correct replacement mounting frame for the following humidifier models:
The GeneralAire 747-7 Humidifier Mounting Frame is a replacement mounting frame for the GeneralAire Legacy Models 747 and 747L Humidifiers. The 747-7 mounting frame allows extra versatility for mounting your humidifier in a desired location. The GeneralAire 7072 is an OEM replacement part for your 747 model humidifier.
GeneralAire 747-7 Humidifier Mounting Frame specifications: