Parallel corrugated protective hose SILVYN® RILL PA6 21 / 16.5X21.2 BK 50M, Parallel corrugated protective hose, inner diameter: 16.5mm, outer diameter: 21.2mm, nominal size: 21, polyamide, halogen-free, UV-resistant, areas of application: To protect a cable from environmental influences,Withstands high chemical and mechanical stress,To comply with special fire protection requirements,Also suitable for light or occasional movement,Versions in black are suitable for outdoor use, Benefits: Halogen-free product that does not develop any corrosive acids or gases that are hazardous to health in the event of a fire,V-0 fire protection classified according to UL94 (flammability test for plastics) and therefore highly flame-retardant in the event of a fire,UL certification according to technical data enables use of the product in North America,VDE-tested quality,Extensive range of accessories available,Cable with multiple certification enables universal use, reduces the variety of parts and thus ensures savings in logistics,Flexible, parallel-corrugated protective hose profile ensures increased dimensional stability and pressure resistance,Convincing product for a wide range of applications thanks to its versatile properties,DNV approval for maritime use