AprilAire 4040 Solenoid Valve, 24 Volt for AprilAire Whole House Humidifier Models 400, 400M, 500, 500M, 600, 600M, 558, 550A, 550, 568, 560A, 560, 700, 700M, 768, 760A, 760, 0.5 ounces

Proper humidification of your home is important for protecting your family’s health and the beauty of your home. The AprilAire 4040 Solenoid Valve controls the amount of water that enters your AprilAire Whole House Humidifier, ensuring that the right amount of humidity is delivered into the air every time it turns on. The 4040 Solenoid Valve is part of the core of your AprilAire Whole House Humidifier, making it possible for you to adjust moisture levels with precision and accuracy.