Description:

The 18″ Double Wall Grease Duct Kit is designed for commercial kitchen exhaust systems that require reduced clearance to combustibles and simplified, weld-free installation. This complete kit includes 30 feet of straight duct, two 90° elbows, and dual 12″ transition connections—ideal for integrating smaller hoods and fans into a high-capacity 18″ system.

The double wall construction provides built-in thermal insulation, eliminating the need for external wrap in most applications, while no-weld mechanical adapters ensure fast, fire-safe, and NFPA 96–compliant assembly.

Kit Includes:

• 18″ Diameter, Double Wall Grease Duct – 30′ Straight

• (2) 90° Elbows

• (2) 12″ Hood & Fan Transition Connections

• No-Weld Hood Adapter (Start)

• No-Weld Fan Adapter (End)

Key Features:

• Reduced clearance design – built-in thermal barrier

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

• No-weld mechanical joints – safer, faster installation

• Includes 12″ reducers for hood and fan compatibility

• NFPA 96 compliant – UL listed and fire-rated

• Ideal for:

  • Restaurants

  • Commercial kitchens

  • Food service and production facilities

  • Tight or space-constrained installs (horizontal or vertical runs)