Polypipe Polyduct Black Ducting 100m Roll is a black polyethylene smooth walled duct for electric cables. It offers high impact resistance, high strength and durability. It is suitable for both open-trench or trenchless applications. Polyduct is manufactured to BS EN 61386-24:2010 and complies with ENATS 12-24 class 3. Supplied in 100 metre rolls, these are available in 30 and 40 millimetre options.