Are you referring to the Fridge Fixer by Recubed solutions? If so I bought one a few years ago, at that time I called and spoke with the owner and received it in about a week.
Thank you. That is the one for the residential side by side with freezer below.
We have the smaller RV unit. The lock I’m looking for looks like a T with an arm the screws to the refrigerator behind the doors. You just have to move it to the left and the side of the fridge. Much easier than the screw on/off lock that come with the RV.