| Compatible Models | : | 220~224~225~400~400A~400K~400M~400MK~400MZ~400Z~400KZ~400MKZ~440~500~500A~500K~500M~500MK~500MZ~500Z~500KZ~500MKZ~550~550A~558~560~560A~568~600~600A~600K~600M~600MK~600MZ~600Z~600KZ~600MKZ~700~700A~700M~700MZ~700Z~700KZ~700MKZ~760~760A~768 |
| Connection Type 1 | : | Compression |
| Connection Types (Custom) | : | Compression |
| Depth | : | 1.8 in |
| For Use With | : | Humidifier |
| Function Type | : | Solenoid Valve |
| Height | : | 1.95 in |
| Installation / Mounting Type | : | Inline |
| Package Quantity | : | 1 |
| Phase | : | 1 ph |
| Power Source | : | Electric |
| Product Family | : | 4040 Series |
| Product Type | : | Solenoid Valve |
| Shipping Weight | : | 0.55 lbs |
| Voltage Rating | : | 24 V |
| Width | : | 2.75 in |
The Aprilaire® 4040 is a 24V replacement solenoid valve designed for whole-house humidifiers in the 400, 500, 600, and 700 series. This valve is a core component that controls water flow, ensuring the right amount of humidity is delivered into the air every time the system runs. By enabling precise moisture level adjustments, it helps protect family health and the home's interior from the effects of dry air.
