Sierra Flame Retardant Split Wire Conduit 5/8″SierraFlame retardant polypropylene is black with a blue stripe and provides chafing protections for wiring systems. The hose is also split longitudinally for easy access to harness.I.D.:5/8″ or 15.9mmWt. “C”:2.94Dist. Pkg.:50′ or 15.2mTemperature range of +275 FMeets ABYC standard 8.15.19 and UL 94 V2