Lennox X4272 – Lennox Zone Damper, Rectangular Bottom-Mount, 12 Inch x 24 Inch, 6839L

 

The Lennox X4272 rectangular zone damper is engineered for precise airflow management within multi-zone HVAC systems. Designed with a durable bottom-mount configuration and a 12 x 24 inch frame, this damper helps optimize comfort by regulating conditioned air flow to specific zones in a home or commercial building. The X4272 is built to Lennox’s exact standards, ensuring smooth operation, long-term reliability, and full compatibility with Lennox zoning systems.

Ideal for retrofits and new installations, the 6839L damper is typically installed in ductwork where accurate zone control improves energy efficiency and reduces system load. Its high-quality construction supports consistent performance and quiet operation, making it a dependable component for modern HVAC zoning applications.

 

Key features

• Genuine Lennox zone control component
• Rectangular design for 12 inch x 24 inch duct openings
• Bottom-mount assembly for straightforward installation
• Helps balance airflow, improve comfort, and reduce energy consumption
• Designed for compatibility with Lennox zoning systems
• Durable construction for long-term reliability

 

Technical specifications

• Model: X4272
• Lennox part number: 6839L
• Damper type: Rectangular zone damper
• Mounting style: Bottom mount
• Size: 12 inches x 24 inches
• Application: Airflow regulation for multi-zone HVAC systems
• Material: Heavy-duty galvanized steel (typical for Lennox dampers)
• Operation: Low-torque, smooth actuation (motorized actuator not always included depending on configuration)