3m Uninsulated Semi-rigid Flexible Ducting Diameter:224mm Ideal for both commercial and

Ideal for both commercial and industrial settings

Features a mesh screen for effective filtration without compromising ventilation

Allows ventilation without active fan operation

dust extraction

Weatherproof: Suitable for internal use only

3m Uninsulated Semi-rigid Flexible Ducting Diameter:224mm Ideal for both commercial andUninsulated semi rigid flexible and fire resistant ducting Complies with the requirements of DW144 Excellent friction loss characteristics Suitable medium, and low pressure applications Constructed from corrugated aluminium strip spirally wound to produce a double overlapped joint ensuring durability in use Can be utilised for hot air exhaust connections between fireplace fireboxes and for building air heating ductwork Does not contain PVC, no toxic