The GeneralAire 7507 is the correct fill valve kit for the following humidifier models:
The GeneralAire 20-10 Humidifier Fill Valve Kit is a replacement fill valve kit for the GeneralAire Elite Steam Model Humidifiers DS20 and RS20. The fill valve of your Elite Steam humidifier allows water to enter the cylinder and produce warm moisture to humidify your home. This 20-10 fill valve kit will have your humidifier running at peak operating efficiency.
GeneralAire 20-10 Humidifier Fill Valve Kit specifications:
GeneralAire can also be written as General Aire, GeneralAir or General Air.