Corrugated polypropylene conduit hose. Safe and easy to install for multi-wire harness, cable & hose routing (like transom to O/B engine), and other applications. New ABYC Electrical Standard E-11 applies to all boats with AC or DC systems. Slit. Fire Retardant/Self Extinguishing Polypropylene. Meets UL 94 V-2 as per ABYC E-11.16.4.1.9. 1 Year warranty. Size 1″ Length 50′ Color Black