Looking to replace 150 cranks on casement windows. The arm size is 11" center on center.
Dave Sr. from SWISCO responded:
December 27, 2022
It appears you have the older style Getty operators which are no longer available with the 11" arm. I would suggest using the 39-044 and 39-045 Getty operators with the 9" arm along with the 39-504 track. Review the specifications for these parts and see what you think.