Aprilaire 4223 Drain Spud

 

• The Aprilaire 4223 Drain Spud is the plastic fitting that attaches to the base of the housing of your humidifier.
• It is designed to connect to a 1/2" O.D. drain hose.
• Fits Aprilaire 500, 550, 558, 560, 568, 600

 

 

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