All Weather Cowl – Twin Wall Pipe 150mm (Stainless)

£86.88 Inc VAT

HETAS approved, black and Stainless Twin Wall flue components and associated parts for creating new internal and external flue systems.

Available in 125mm-200mm internal diameters, all insulated parts feature a 25mm layer of Rockwool insulation, creating a 50mm greater outer diameter and come supplied with a Locking Band where applicable.

All Weather Cowl – Twin Walled Pipe

Push-fit All Weather Cowl for ultimate protection against the elements for a twin wall flue system. Featuring extra protection around the terminal, this Cowl is ideally suited to flue systems in exposed areas or waterfronts or suffer from wind channelled across the flue.

This item is not advised for flue systems under 4m in length due to potential impact on the draw. Similarly, no terminal is designed to be 100% water-tight as this would impact the draw of the stove.

Also available in Open-Sided and Meshed versions.

Available in Stainless and black finishes, for 125mm-200mm internal diameters.

Please note – As with all twin wall parts the diameter quoted is the internal diameter – The external diameter is 2 inches larger due to the surrounding insulation.

Designation number T450-N1-D-Vm-L50050-G60

  • Finish: Stainless
  • Internal Diameter: 150mm
  • External Diameter: 200mm
  • Height: 350mm
  • Insulated: Yes
  • Locking Band Supplied:Yes
  • Warranty: 12yrs
  • Grade: 316

Additional information



Flue Diameter


Flue Parts


Terminal Type

Rain cap, Bird guard, Anti downdraught

To Fit

Twin wall pipe