I have a very old BM23. How old? I called Beverage Air and they say it's too old for them to have any record of it. Anyway, I ordered a new door gasket for it and it doesn't fit. I'll have to have a custom one made. I've got mine measured at 28.5" x 20.5", but was hoping someone here also has a really old BM23 and can tell me how thick the gasket is. Thanks!