The SFL Sflue twin wall to flexible liner adapter allows you to change from Shieldmaster twin wall to flexible flue liner. This is usually used if you have to pass through a wall into the chimney before going up the existing chimney.

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.

Dimensions A:134mm B:125mm

• Distance to Combustibles: 50mm
• Warranty: 10 years
• Finish: Stainless Steel
• Internal TW Diameter: 127mm
• External TW Diameter: 178mm
• Connections: Eight Barb Twist Quick Lock (Locking Band Included)
• Grade of Steel: 316 Internal, 304 External
• Thickness of Steel: 0.5mm
• Insulation:: 25mm auger injected mineral wood material
• Temperature Resistance: 450°C
• Approvals: HETAS Approved, CE, BS EN ISO 9001
• Designation No: BS EN:1856-1 T450 N1 D Vm L50040 G50