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    Single wall exhaust systems

    High quality single wall exhausts for relining of existing brick chimneys, categorized gas vents, non-categorized connectors, and kitchen exhaust


    Single Wall Commercial Kitchen Exhaust Ductwork

    System features



    Single Wall Grease Duct


    Made of all stainless steel
    All supports and accessories are stainless steel

    Wall thickness

    per UL-1978 Listing


    3 – 36 inch
    (use SWFL for diameters 38” through 48”)



    2.2” overlapping joint with Patent-Pending light weight technology and double female socket permitting fastest alignment/installation on the market


    Locking Band

    Attached to each part


    Product data sheets and catalogs:

    Kitchen Exhaust CK Series

    SWCK - Technical Data Sheet

    SWCK - Adjustable length - Technical Data Sheet

    Brochure Kitchen Exhaust Systems


    Installation Manual:

    Installation CK Systems – All


    Submittal Records:

    SWCK Submittal Record


    UL Summaries:


    Main features

    • Only 1/16 inch per foot slope is required
    • Factory CAD designs for installation ease
    • All lengths are field cutable for maximum flexibility
    • 100% stainless steel with Limited Lifetime Warranty
    • Overlapping high pressure joints
    • Smooth flow and known resistance for perfected factory pressure calculations


      Stainless steel duct for connecting cooking appliances, kitchen hoods, and dishwasher exhausts to the outdoors under negative or positive pressure.
      A true replacement for field welded black steel. Design eliminates welding and lengthy inspections in the field, provides UL/ULC Listed and Certified exhaust solutions.

      UL Listings (and ULC)


      UL-1978 Standard
      Grease Duct
      (ULC-S662 Standard for Factory-Built Grease Ducts)


      UL-103 Standard
      Building Heating Appliance Chimney

      Additional UL/ULC 20" W.C. Pressure Listing

      25 years warranty!