Description
APRILAIRE 4223 DRAIN SPUD FOR HUMIDIFIER
• 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" I.D. drain hose.
• Compatible with Aprilaire humidifiers models 500, 550, 558, 560, 568, 600