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Need replacement parts for this unit?
- Genuine Aprilaire humidifier replacement part
- 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 Aprilaire humidifiers models 400, 500, 600 and 700.
Both the inlet and outlet are threaded 7/16" - 24 UNS for accepting a compression fitting for 1/4" tubing. The inlet includes the compression fitting & ferrule. For the outlet, your existing compression fitting is reused.
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.
This item is compatible with the following Aprilaire model numbers.
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There are no compatible model numbers that match your entry.
Please note: Many replacement parts have subtle differences between them and can be easily confused. Attempting to install the incorrect part voids the return coverage. If you are not completely sure your order is correct please give us a call at 1-888-757-4774.
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This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.
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