The GeneralAire 7096 is the correct replacement window for the following humidifier models:
The GeneralAire 81-21 Humidifier Float Valve Assembly is a replacement thumb screw for the GeneralAire Legacy Drum Model 65 and 81 humidifiers. The GeneralAire 81-21 float valve assembly is a crucial internal component used to distribute clean humidification in your home. The GeneralAire 7096 is an OEM replacement part for your 65 or 81 model humidifier.
GeneralAire 81-21 Humidifier Float Valve Assembly specifications: