16mm general industrial corrugated polypropylene flexible conduit with high compression strength. Suitable for embedding into floors or walls. The preformed corregations ensure a high cosmetic effect together with good flexibility. Id 11mm od 16mm. Colour black. Temperature rating -5 to +60 C. Protection rating IP55. Flammability rating L.S.F. low smoke and fume UL94VO oxygen index 29%. Resistance definition Class 2 light 350 newtons. Mechanical tensile strength Class 3 medium 500 newtons. 100m in length.