Hurd Window parts

Quick Learner from Naperville IL
Can you help me in replacing these? I have a few window that will not close. They are Hurd windows from about 2002.
Thanks!
Mike
3 user uploaded images
2 Replies
Bob
Bob from SWISCO
SWISCO
Expert

This looks like either the 39-253LB & 39-253RB, or the 39-438B & 39-439B. The difference between these two operators is illustrated in the video below. Take a look and see what you think. 

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