Pmflex HISPEED 16MM X50 is a corrugated low-friction polypropylene installation conduit with a 16 mm outer diameter and 10.7 mm inner diameter, supplied in a 50 m coil. The halogen-free grey PP construction reduces smoke and corrosive gas emission in fire conditions, meeting the requirements of low-smoke installations. The HiSpeed inner profile lowers pulling force so cables can be drawn in over long conduit runs. Typical applications include cast-in-concrete wiring for residential, commercial, and public-building projects.