Description:

The 18″ Diameter Flange Collar Adapter – Start Connection is designed to create a secure, fire-rated starting point for single wall grease duct systems. Installed at the hood or exhaust equipment outlet, this adapter provides a tight mechanical seal without the need for welding, supporting faster, cleaner, and code-compliant installations.

Constructed from high-temperature, grease-resistant steel, this flange collar is built to withstand the harsh conditions of commercial kitchen ventilation systems and complies with NFPA 96 standards.

Key Features:

• 18″ diameter – fits standard single wall grease duct systems

• Flanged collar for strong, leak-resistant connection

• Start connection – ideal for hood or equipment outlet

• No-weld installation for easy, safe setup

• Heavy-duty steel – heat and grease resistant

• NFPA 96 compliant for commercial kitchen exhaust systems

• Ideal for restaurants, hotels, industrial kitchens, and food processing facilities