Medium Duty 20mm Diameter Corrugated Conduit for general application where wiring needs to be concealed or provided with mechanical protection. The device can be tightly coiled without damage. The product eases installation, reduces job time and fittings required. It is for indoor or outdoor use, and is PVC with flame retardant. Common 20mm size, meets AS/NZS2053 requirements, and is ideal for both commercial or domestic use.