Home Essential】Whether it's an emergency or an outdoor event, 30 amp generator cord and power inlet box can safely and efficiently provide you with power you need. For example,in bad weather,after a disaster, home power outage, etc,green indicator light on flip-top cover can guide way to improve safety of use;inlet box can also be used in outdoor activities, such as RVs, yachts, picnics, parties, etc,for a wide range of uses! 【Fast Conductor】Extension cord length is 20FT,outer skin is wrapped with flame retardant pvc, can protect against sunlight, water, abrasion and not easy to be deformed.RV extension cord interior is made up of pure copper conductor with low resistance and good conductivity, which can avoid resistance heating due to long-term use and keep voltage stable. 【No Drilling Required】Designed for 30 Amp NEMAL14-30P wires, supports up to 8AWG~10AWG; 125/250V, 7500W; ①Shell has anti-corrosion powder coating, not easy to rust, thicker material ②Large internal size space, wires are not easy to intertwine, good heat dissipation ③Four pre-drilled holes, can be easily disassembled without use of tools! 【Stable and Waterproof】Plug (Male): NEMAL14-30P; Receptacle (Female): NEMAL14-30R; Max Power:7500W;Female connector with twist-lock connector can be fixed and waterproof. We have a variety of wire sizes for you to choose from, providing plenty of extra length! 30 amp generator cord and power inlet box is UL and ETL listed for safety and reliability.💌If you have any questions, please feel free to contact us, no reason to return.