30 Amp Generator Extension Cord 4 Prong 125/250V Up To 7500W, Nema L14-30P, 15Ft Heavy Duty: This 10 Gauge SJTW 30 Amp 4 prong 120/250V 7500W Generator power cord is designed specially for connecting portable energy generators with manual transfer switches to power your house or RV Twist Lock Design: 30A L14-30 twist lock connector to avoid cord falling off and keep dust rain outside to improve performance in critical weather, ensuring safety use Superior Durability : Pure copper wiring coated with a heavy duty flame retardant, heat resistant, UV resistant PVC , suitable for various harsh environments,Trust your energy needs to this tough ETL-listed weatherproof extension cord Multiple Uses: This NEMA L14-30 Plug 30 Amp Generator Extension Cable can power your entire home during natural disasters and other Emergency, Provide electricity to your trailer at stops along your journey, keep your equipment running through outages Easy to Organize: It comes with a plastic strap, Convenience to carry and make the cord neat