In this installation video (skip to 2:47) made by rachio
They start taking about an actual plug instead of hard wire. I don’t have this plug or stain relief bushing (as they call it).
Some reviews on Amazon were saying that it used to come with it but I didn’t get one. If it’s not supposed to come with it, I need to get these parts as the unit I’m replacing also utilizes a plug on the outside of my house instead of being hard wired. I am just not sure where to acquire them.