Malco 6″ Round Duct Damper Pre-Assembled HVAC D6AST

Malco 6″ Round Pre-Assembled HVAC Damper – MFG# D6AST

The Malco D6AST 6-inch round duct damper is designed for airflow regulation in forced air HVAC systems. This pre-assembled damper installs directly into 6″ round ductwork to provide simple and effective air balancing.

Constructed from durable galvanized steel, it resists corrosion and provides long service life in residential and light commercial applications.

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🔧 Specifications:

• Diameter: 6 Inch

• Type: Round Manual Volume Damper

• Construction: Galvanized Steel

• Pre-Assembled

• MFG#: D6AST

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✔ Ideal For:

• HVAC supply duct airflow control

• Room balancing adjustments

• Branch duct regulation

• New installations & retrofits

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Important:

This damper is designed for forced air systems only.

Not approved for use in wood, coal, or combustion venting applications.

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Why Contractors Choose Malco:

• Trusted HVAC brand

• Durable construction

• Fast installation

• Reliable airflow adjustment

Perfect for HVAC technicians, duct installers, and sheet metal contractors.

Product details

Part / SKU	D6AST

Package includes

• Malco 6" Round Duct Damper Pre-Assembled HVAC D6AST

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.