Resideo by HoneyWell MARD-12 Modulating Automatic Round Damper Engine Harmonic Balancer - 12 Inch

The Resideo by Honeywell MARD-12 is a 12-inch modulating automatic round damper designed for precise airflow control in residential and light commercial HVAC systems. This motorized damper automatically adjusts to regulate air distribution through ductwork, improving system efficiency and zone control.

Key Features:

• 12-inch round duct size for standard ductwork compatibility
• Modulating control provides precise airflow adjustment rather than simple open/close operation
• Motorized actuator for automatic operation with compatible HVAC controls
• Durable galvanized steel construction for long-lasting performance
• Designed for zone control applications and automated ventilation systems
• Works with 24VAC control systems common in residential HVAC

This damper is ideal for zoning applications, fresh air intake control, or any HVAC application requiring automated airflow regulation. The modulating function allows for smooth, gradual adjustment of airflow volume, providing superior comfort control compared to standard on/off dampers.