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The Aprilaire 5554 Modulating Control Board is designed for use with models 801 and 866. It provides essential control capabilities for your humidifier and contributes to efficient moisture management in your environment. This component is crucial for maintaining optimal humidity levels, ensuring comfort and protection for your home.
This control board allows for precise adjustments to humidity, enhancing the performance of your humidifier.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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