Power Connector Receptacle, Female Socket NEMA L16-20R 27W76 Waterproof Woodhead Molex twist lock socket. 20 amps 480 volts While it looks like the 220V plug commonly found generators, it is not compatible :( .
https://www.digikey.ca/en/products/detail/molex/1301470059/2076881
If it is listed here it is available. Call, text, or email. Located near Henderson Highway, and just inside the perimeter.