This fits your .
Enter your model number
to make sure this fits.
Genuine Aprilaire humidifier replacement part
Made in Madison, WI, USA
Ensures that the right amount of humidity is delivered into your home
Controls how much moisture enters your humidifier, making it possible to maintain proper humidity levels throughout your home
Compatible with all Aprilaire humidifiers except for commercial units and residential models 800, 330, 445, 110, 112, 350 and 360
Proper humidification of your home is important for protecting your family’s health and the beauty of your home. The 4040 24 Volt Solenoid Valve controls the amount of water that enters your humidifier, ensuring that the right amount of humidity is delivered into the air every time it turns on. Usually installed by your contractor, the solenoid valve is part of the core of your humidifier, making it possible for you to adjust moisture levels with precision and accuracy.
From the Manufacturer
OEM replacement 24V solenoid valve. Allows water to flow into your humidifier. Works with most Aprilaire home humidifiers.
Aprilaire 4040 Solenoid Valve 24 Volt for Humidifier Models 400 500 600 700 - B007KDZ6WC