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Double Wall

Models PS and IPS are double wall, modular, positive pressure venting systems -

Features & Benefits

  • Factory-built for high quality, durability, ease of installation and long life
  • Stainless steel cylindrical construction, for superior strength at much higher temperatures versus rectangular carbon steel field fabricated systems
  • 5” to 48” diameters (ID) to fit the wide range of commercial applications and customer specifications
  • Insulation options include 1” air or up to 4” of dense fiber blanket for stringent skin temperature requirements
  • Available in both stainless and aluminized steel exteriors
  • Small footprint with minimal horizontal slope required (1/16” per foot) as compared to field welded/wrapped rectangular duct (1/4” per foot)
  • Light weight
  • Safety tested to stringent test requirements – UL 1978; includes a 30-minute, 2000 °F grease fire test
  • Array of components and accessories designed to make installation simple and quick
  • Backed by Selkirk’s industry-leading Limited Lifetime Warranty for grease duct applications 
  • Backed by Selkirk’s industry-leading commercial/industrial warranty


Exhaust Applications

Commercial – Industrial – Marine

  • Kitchen Hoods
  • Food Process Ovens
  • Pizza Ovens
  • Dishwashers
  • Brew Kettle Pots