Lennox 36N91 Humidifier Drain Spud

The Lennox 36N91 is an OEM replacement drain spud designed specifically for Healthy Climate and AprilAire whole-house humidifiers. This critical component serves as the connection point for drainage tubing, allowing excess water to drain properly from the humidifier system.

Key Features:

• 1/2" OD discharge fitting for secure drainage connection
• Durable construction resists cracking and corrosion
• Compatible with Healthy Climate models HCWB2-12/12A/17/17A, HCWB3-12/12A/17/17A, HCWBK2-12/12A/17A, and WB2-12/12A/17/17A
• Cross-reference to AprilAire 4223 for models 500, 550, 558, 560, 568, and 600
• Also identified as part number 36N9101

This drain spud prevents water leaks and supports consistent moisture control in your humidification system. Essential for maintenance or replacement to ensure reliable operation and proper drainage performance.