The GeneralAire 7330 is the correct replacement distributor tube for the following humidifier models:
The GeneralAire 1137-24 Humidifier Distributor Tube is a replacement distributor tube for the GeneralAire 1137 Legacy Series Humidifiers. The GeneralAire 1137-24 distributor tube attaches onto the 1137-4 distributor trough and helps ensure the proper flow of moisture through your unit and into your home. The 7330 distributor tube is an OEM replacement part for yoru 1137 humidifier model and is reliably constructed for optimum performance levels.
GeneralAire 1137-24 Humidifier Distributor Tube specifications: