6 inch (150mm) diameter flexible chimney liner together with components. Used for lining chimney stacks , ensuring all combustion gases and smoke are properly extracted. Manufactured in the UK by Ultraflex, for use in conjunction with wood burning appliances and solid fuel stoves. HETAS approved, corrosion and crush resistant chimney flue liner. Available to buy in multiples of 1 metre, up to 40 m long.