The Lennox X4225 zone damper, part number 6730L, is a rectangular side mount HVAC zone damper designed to provide precise airflow control in zoned forced-air heating and cooling systems. With a 26 inch by 8 inch opening, this damper allows contractors and system designers to regulate air distribution efficiently across multiple zones, improving overall comfort and system performance.

Engineered for durability and reliable operation, the Lennox X4225 zone damper integrates seamlessly into rectangular ductwork and is commonly used in residential and light commercial zoning applications. It helps reduce energy waste by directing conditioned air only where it is needed, supporting balanced temperatures and improved system efficiency.

 

Key features:

• OEM Lennox rectangular zone damper
• Side mount configuration for flexible installation
• 26 inch x 8 inch duct opening
• Designed for zoned HVAC air distribution systems
• Helps improve comfort and airflow control
• Compatible with Lennox zoning systems and controls

 

Applications:

• Residential HVAC zoning systems
• Light commercial ducted heating and cooling systems
• New installations or replacement of existing zone dampers

 

Specifications:

• Brand: Lennox
• Part number: X4225
• Alternate number: 6730L
• Damper type: Rectangular zone damper
• Mounting style: Side mount