Gentec crank handles

A handy person from Port Dover, Ontario says:
We have just moved into a brand new home which has Gentec casement windows.
Will your 39-107FK crank handles work on these windows, If so would we require the 39-107 covers as well??

Please advise

Thank you
Your Canadian cousin
Profile picture of Tom
Tom from SWISCO responded:
Hey, chuck! I'm actually not sure what operators Gentec uses, so I can't say for sure whether our 39-107FK would work for you. I can say, however, that if you were to use our 39-107FK, you would not need our 39-107.

If you can snap a few pictures of your existing operators I'd have a better idea of what you have. Let me know!
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