Description:

The 20″ Diameter Single Wall Grease Duct – 48″ Fixed Length is a pre-cut, heavy-duty duct section designed for high-temperature, grease-laden air exhaust in commercial kitchens. Constructed from heat- and grease-resistant steel, this fixed-length duct ensures smooth airflow, fire safety, and NFPA 96 compliance.

Ideal for use in restaurant hoods, exhaust fans, and full duct systems, it’s a perfect fit for both new installations and repair/replacement applications.

Key Features:

• 20″ diameter x 48″ (4 ft) fixed length

• Single wall construction – fire-rated and durable

• Made from high-temperature, corrosion-resistant steel

• Seamless connection with flanges, adapters, and locking bands

• NFPA 96 compliant – ideal for commercial kitchen exhaust systems

• Compatible with other standard duct components

• Easy to install, maintain, and integrate into custom layouts