I currently have a Ryobi 2200w Inverter Generator that has the capability to be run in parallel with a 2nd generator. This leads me to several questions:
Does the second generator need to be the same brand?
Are the Parallel Kits interchangable between brands (could I use a Harbor Frieght parallel kit on my Ryobi?

I just watched a video where a guy made a Parallel Kit by purchasing 2 cords with the correct connection to the generator and another cable with a 30A female plug. Then it was Green to green, Red to White, and Black to Black through a circuit breaker.

Is it really that simple?

Just doing some planning.