This Sflue 4″ (100mm) – 5″ (125mm) Increasing Adaptor To Twin Wall flue pipe allows the connection of a 4″ Single Walled flue pipe to a 5″ Twin Wall flue pipe.


Increasing Adaptor To Twin Wall – Sflue Black – 4″ (100mm) – 5″ (125mm)
Original price was: £78.61.£51.00Current price is: £51.00. Inc VAT
-35%Technical Details
SKU | TTWI-BSFL-LBLK-D100-CISW |
---|---|
Brand | SFL Sflue |
Flue System | Twin Wall Flue System |
Flue Diameter | 4" (100mm) - 5" (125mm) |
Flue Colour | Black |
Flue Part | Adapter |
- Distance to Combustibles50mm
- Warranty10 years
- FinishBlack
- Internal TW Diameter127mm
- External TW Diameter178mm
- ConnectionsEight Barb Twist Quick Lock (Locking Band Included)
- Grade of Steel316 Internal, 304 External
- Thickness of Steel0.5mm
- Insulation25mm auger injected mineral wood material
- Temperature Resistance450°C
- ApprovalsHETAS Approved, CE, BS EN ISO 9001
- Designation NoBS EN:1856-1 T450 N1 D Vm L50040 G50
Manufacturer: SFL Sflue

SFL Sflue is a top end product and with a large range of components and a multi-barb twist-lock jointing system, Sflue offers the ultimate in ease of installation and quality at a competitive price. It’s a CE approved product and has been tested to the requirements of BS EN 1856-1. Sflue is a prefabricated, factory made twin-wall insulated stainless steel system chimney. The fully welded construction combined with a high performance / high density insulating medium, provides the optimum level of performance required for modern-day solid fuel appliances such as DEFRA approved high-efficiency wood-burners alongside traditional stove installations.
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