RKLSHF and RKLSHFP corrugated pipes are casing pipes designed for mechanical protection and protection against moisture of cables in electrical installations. They are used in places with a special degree of fire protection (public utility buildings, buildings with a wooden structure, attics, attics). RKLSHF and RKLSHFP pipes meet the requirements of the standard regarding the amount of toxic chemical compounds released during combustion (halogen-free product). Equipped with a steel pilot.