Aprilaire Humidifier Solenoid 120v. Research Products model 4191 replacement solenoid. Genuine Aprilaire solenoid for model 350, 360. Includes the strainer 4004, installed in valve body. Includes the two screws and compression fittings as shown in our photo.
Specifications printed on solenoid body: 120 volts, 60 Hz, 2.3 watts, Orifice 3/16.
For Aprilaire humidifier model 110 or 112 use the 120v solenoid 4005.