NEMA L14-20P Twist-Lock to 14-50R RV/EV Adapter
Made with heavy duty 10 gauge cable. This fully molded adapter features NEMA L14-20 twist-lock plug on one end and NEMA 14-50 receptacle on the other end.
These connectors are common on household backup generators, and on racks of power amplifiers in large audio systems.
Length is 18 inches.
Due to continual product improvements, the actual item may differ in appearance from that pictured.