SlimVent®

The industry’s only obround-shaped grease duct

Our prefabricated, double-wall obround grease ducts are designed and built for specific project requirements, including horizontal runs, and don’t require field welding or secondary insulation. The patented obround shape significantly reduces the necessary overhead space compared to a round duct.

  • Prefabricated, modular, double-wall system with 4″ of insulation
  • 2-hour fire rating, eliminating the need for a fire-rated chase
  • Saves 28% overhead clearance space compared to round designs
  • Pre-engineered to include all necessary components, including hood transition, cleanout and access door
  • Includes the RapidLock® Connection System, a unique one-piece band for joining chimney sections, eliminating the need for added nuts and bolts, reducing installation time and expense
  • UL listings: 1978, UL 2221 Classified