Tom from SWISCO responded:
July 9, 2020
Unfortunately, your operator is very, very old and hasn't been made in a long time. We usually do recommend the 39-412, but it would probably require heavy adaptation of the sill for it to fit. Even then I can't guarantee it will work; nobody here has personally tried it. Due to how old it is, we don't really have anything else that could work. I am very sorry that we can't be of more help. |