Goes OVER an existing narrow locking band to provide extra strength (useful for unsupported lengths for extra security).
Stove Fitter's Warehouse offer a full Twin Wall Design Service with all designs prepared within our Twin Wall Design Studio. Contact us for further details (email@example.com).
Duraflue Twin Wall was launched to the market during 2014 and, due to its high quality and innovative design, is already a favourite amongst professional stove fitters.
I used an extra wide locking band on my dura flue system because the flue is so long and the clamp works really well and stops any movement.