what the difference between a 743 f series 743 g series. I have a door kit that fits my 743 and is for sale . A 743 owner is asking me whether it is a f series or a . g series as he's interested in buying it . Or do both door opening have the same measurement so the door will fit either machine. I'm not sure if mine is a f series or a g series. If any of you in the forum have the answer can you let me know. thanks in advance andy