Increasing Single to Twin Wall Adapter – 150mm to 175mm (Stainless)

£38.56 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.

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Increasing Single to Twin Adapter

Push-fit Adapter to connect our Twin Wall flue to Single Wall Stove Pipe (or Stove outlet collar), increasing the internal diameter as you travel up the system 25mm (1″).

This item features a single wall male connection on the underside, an insulated twin wall female connection on the top and is not supplied with a locking band.

Available in Stainless and black finishes, 100mm-200mm internal diameters.

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

  • Finish: Stainless
  • Inner Diameter: 175mm
  • Outer Diameter: 225mm
  • Effective Height: 160mm
  • Connection: Push-Fit
  • Insulated: Yes (25mm Rockwool)
  • Locking Band Included: No
  • Warranty: 12yrs
  • Int / Ext Grade: 316 / 304

Additional information



Flue Diameter


Flue Parts


To Fit

Twin wall pipe

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