Made by Hubbell this is a 3 prong female connector for a 15 amp 250 volt system. 36mm diameter by 70mm long. It has the 2 flat insert holes a the ground prong hole. There is wire that has been attached already to the unit, so it should be an easy hook up. If the cable is not long enough you have to unscrew the screws to get to the internal area to insert new wires. Used.
