The Supco UHS120 solenoid replaces the following parts:
The Supco UHS120 Universal Humidifier Solenoid - 120v is a compatible solenoid replacement for the Aprilaire 4005 and the General 990-52. This universal humidifier solenoid valve replacement kit includes a solenoid valve, mounting bracket and all fittings to remove and replace the existing solenoid valve. This Supco solenoid offers easy installation and adjustable water flow valve.
Supco UHS120 Universal Humidifier Solenoid - 120v specifications: