Description:

The 22″ Double Wall Zero Clearance Grease Duct Kit with 30 feet of straight duct, two 90° elbows, and dual 16″ transition connections is designed for high-volume commercial kitchen exhaust systems requiring zero clearance to combustibles. The factory-insulated double wall design ensures fire-safe operation without the need for external insulation, making it ideal for space-constrained installations in ceilings, shafts, or mechanical rooms.

With no-weld mechanical adapters for both the hood and fan, installation is fast, clean, and fully compliant with NFPA 96, UL 2221, and ASTM E2336 standards.

Kit Includes:

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

• (2) 90° Elbows

• (2) 16″ Transition Connections (Hood & Fan Side)

• No-Weld Hood Adapter (Start)

• No-Weld Fan Adapter (End)

Key Features:

• Zero clearance to combustibles – built-in insulation eliminates fire wrap

• Double wall steel construction – durable, fire-rated, and grease-resistant

• No-weld mechanical joints – safer, faster, and easier installation

• Dual 16″ connections – ideal for integrating smaller equipment to a larger duct

• Standards: NFPA 96, UL 2221, ASTM E2336 compliant

• Perfect for:

  • Restaurants, food halls, and hotel kitchens

  • Commercial cooking lines with space restrictions

  • Long duct runs requiring direction changes

  • High-volume exhaust systems with transition needs