Description:

This 18″ Double Wall Grease Duct Kit with 50 feet of straight duct and four 90° elbows is engineered for commercial kitchen exhaust systems requiring reduced clearance to combustibles and seamless integration with 12″ hoods and fans. With dual 12″ transition connections, this kit allows a large-diameter main duct to connect safely and efficiently to smaller terminal components.

The double wall construction eliminates the need for external insulation in most applications, offering a built-in thermal barrier while meeting all NFPA 96 fire safety standards. Weld-free mechanical joints simplify installation, reduce labor time, and support clean, professional results.

Kit Includes:

• 18″ Diameter, Double Wall Grease Duct – 50′ Straight

• (4) 90° Elbows

• (2) 12″ Hood and Fan Transition Connections

• No-Weld Hood Adapter (Start)

• No-Weld Fan Adapter (End)

Key Features:

• Reduced clearance design – built-in thermal insulation

• Double wall steel construction – heat-, grease-, and corrosion-resistant

• No-weld mechanical joints – fast, safe, and easy to install

• Dual 12″ transitions – compatible with smaller hoods and fans

• NFPA 96 compliant – UL listed and code-approved

• Suitable for horizontal or vertical runs

• Ideal for restaurants, industrial kitchens, food courts, and large-scale cooking operations