need replacement controller

A home owner from Steamboat Springs, CO says:
The controller arm is 7-7/8" long to the bend. I read that this company is no longer in business. Do you have a substitute for this unit? We need to replace probably 4.
Thanks for your help.
User submitted image of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Hello! Looks like you have two operators. The first one looks like our 39-028E, while the second looks like our 39-013. Look them over and tell me what you think.
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