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The Aprilaire 4223 Drain Spud is a plastic fitting designed for Aprilaire humidifier models 550, 558, 560,568, and 600. It connects to a half-inch drain hose and channels moisture away from the humidifier effectively. This part is essential for maintaining your humidifier's function by ensuring proper drainage and preventing leaks.
This drain spud is crucial for any professional HVAC technician working with Aprilaire humidifiers.
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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