4040 Humidifier Solenoid Valve Replacement For Whole House Humidifiers Compatible With Models 400 400M 500 500M 558 550A 550 568 560A 560 600 700 700M 768 760A 760 24V 60 Hz 2.3W Replaces A2012-S118 B2035-S2 B2035-S5 B2035-S54
✔️ 24V, 2.3W coil, inline strainer, single valve included
Our 4040 humidifier solenoid valve is a replacement part designed for Aprilaire whole-house humidifiers. It regulates water flow to the humidifier's spray mechanism, helping maintain proper indoor humidity. Compatible with models 400, 400M, 500, 500M, 600, 600M, 558, 550A, 550, 568, 560A, 560, 700, 700M, 768, 760A, 760. Use in residential central humidification systems for consistent moisture output.
✅ 24V coil, 2.3W, 60 Hz operation
✅ Brass body with stainless steel and copper components
✅ In-Line Strainer, Compression Sleeve, and Compression Nut included
✅ Replaces A2012-S118, B2035-S2, B2035-S5, B2035-S54, B2035-S55, B2015-S51, B2015-S54, B2015-S58, B2015-S65, B2015-S68, B2015-S85, B2015-S87
✅ Yellow color, compact inline valve suitable for Aprilaire units
💡 What is a humidifier solenoid valve used for in a home central humidification system? A handy overview to help you understand function, compatibility, and replacement needs.
- Regulates water flow into the humidifier based on system signals
- Requires matching coil voltage (24V) and wattage (2.3W) for reliable operation
- Includes inline strainer and compression fittings for secure installation