L14-30 Generator Extension Cord - 30 Foot, 30A, 125/250V, 10/4 SOOW - UL Listed - Iron Box  IBX-5805-30-C HEAVY DUTY /MADE IN USA- Featuring an L14-30P Plug to L14-30R Connector on TF Flextreme Cable. Rated for 30 Amps and125/250V.All custom built Iron Box Power cords are built in Raleigh NC HIGHEST QUALITY COMPONENTS  Utilizestop-of-the-line Pass and Seymour wiring devices featuring: Industrial-strength, brass alloy plug blades and connector contacts resist heat rise, provide excellent conductivity. Impact- and corrosion-resistant durable nylon 6 shell material. Integral flexible rubber cord grommet conforms to and seals around wire to provide protection from oils, water, and dirt from entering wiring device. EMERGENCY READY  Equipped with superior weather-proofing, you can count on reliable 30 amp power flow, especially in those extreme situations. Compatible with any generator equipped with a L14-30 receptacle. INDOOR AND OUTDOOR  Made for various uses both indoor and outdoor these cords are built on heavy duty10/4SOOWwire capable of being buried directly in the ground. THE WORLDS LEADING POWER CORD SUPPLIER - Iron Box manufactures UL listed power cords with only the best components and wire.