This prototype interlock kit fits Crouse panels with a top left mounted "humpback" main breaker.
 
This kit is not yet a ful production kit so it will not be our signature blue anodized color. However, it is fully CNC machined from solid billet T-6061 aluminum and will have a nice finish and fit and operate well.
 
The kit includes all decals, drill bit, thread lock compound, etc. like every kit we sell.