The Lennox X4266 rectangular zone damper is a genuine OEM airflow control component designed for use in Lennox HVAC zoning systems. This bottom mount damper measures 10 inches by 24 inches and is engineered to regulate airflow to individual zones within a ducted heating and cooling system. By opening and closing based on zoning control signals, it helps maintain consistent comfort levels, improve system efficiency, and reduce energy waste. Manufactured to Lennox specifications, this damper ensures proper fit, dependable operation, and long-term durability in residential and light commercial applications.

This zone damper is commonly installed in rectangular ductwork and is compatible with Lennox zoning controls, making it an ideal replacement for worn or failed dampers in existing systems. Using a genuine Lennox part helps maintain system performance and avoids fitment or compatibility issues associated with aftermarket alternatives.

 

Specifications:

Part number: X4266
Alternate reference: 6829L
Product type: Rectangular zone damper
Mounting style: Bottom mount
Nominal size: 10 inch x 24 inch
Application: HVAC zoning systems
Compatibility: Lennox zoning control applications
Construction: Galvanized steel damper body with factory-installed actuator