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HSWCK – Single wall grease duct (UL)

UL Listed – Halton’s HSWCK Single wall grease duct is a stainless steel duct for connecting cooking appliances and grease hoods to the outdoors under negative or positive pressure.


A true replacement for field welded black steel. HSWCK 3-16” taps together and 18-36” is a flange connection without the need for welding or in-field fabrication.

Features & Benefits

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


Connection / Installation Details 
2.2” overlapping joint with Patent-Pending lightweight technology and double female socket permitting fastest alignment/installation on the market:

1. Use supplied silicone sealant to make the complete seal
2. Push the male/female ends together
3. Install the single-screw locking band


  • Made of all stainless steel, thickness per UL-1978 Listing
  • All supports and accessories are stainless steel

6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, & 36 (use SWFL for diameters 38” through 48”)

Available Lengths:  
9”, 12”, 18”, 24”, 30”, 36”, 42”, & 48” (or any fixed length between)

Available Fittings:  
Any elbow or tee, over 80 catalog fittings per each diameter

Available Accessories:
All-stainless supports, guides, hangers, adapters – over 25 accessories per each diameter


HSWCK – Single wall grease duct (UL)
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