This interlock kit fits GE panels which have a 4-pole vertical-oriented main breaker and apporimately 1 1/4" from the bottom of the main breaker panel cutout edge to the top of the generator breaker panel cutout edge as shown.
 
Since this is not yet a production kit, it is not blue anodized. However, it is CNC machined and looks very professional and fits and operates perfectly.
 
The kit comes with all necessary hardware, thread lock compound, full decal kit, and the correct size drill bit. All of our interlocks are proudly made in the USA!