CBGL: 2" air insulation double wall grease duct

Grease Duct

  • Male/female slip-type jointing system
  • Laser welding
  • Stainless steel material
  • Industrial, institutional and commercial application
  • UL/ULc listed


CBGL model Industrial Positive Pressure is a double wall grease duct system with 2" air space.


  • Product Overview
  • Related Resources
  • Applications
  • Male/female slip-type jointing system
  • CBI and inner wall standard 316L or 304 2B stainless steel (20 - gauge 6" to 40" diameter, 18 ga 42” to 48”)
  • Full range of accessories including elbows, fittings guides and supports
  • Laser welded
  • Easy to assemble
  • Complete engineering
  • UL/ULc listed


Grease duct products are suitable for installations using exhaust system components for removal of smoke and grease laden vapors in commercial, industrial, institutional and similar type applications.


Basics of Boiler Venting for Safe Operation →

This webinar will cover the types of venting categories for condensing and non-condensing boilers and the requirements that need to be met for each., and pursued independence from local electrical grid.

Minimize Draft Loss Through Proper Exhaust System Design →

In this advanced venting webinar, attendees will learn about draft calculations and economizer considerations for single-boiler layouts and common venting.

Stack Installation Video →

  • Kilns and ovens
  • Cooking appliances
  • Ventilation hoods
  • Restaurant grease ducts
  • Pizza oven exhausts
  • Industrial furnaces
  • Processing equipment
  • Low and high pressure steam boilers
  • Diesel and turbine exhausts
  • Building heating equipment