Tom from SWISCO responded:
June 2, 2017
We believe you may be able to use our 38-097 and 38-078 sash locks. However, I'm afraid your old keeper will not work with the new locks. Therefore, you will also need sash lock keeper, such as our 38-079. For the operator cover, take a look at our 39-107. Get back to us if you should need any further help.
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