Casement operator replacement

A quick learner from Chicago,Il says:
March 14, 2016
Hi,

I'm looking for a replacement for the attached pictures.
The stamped number on the main part appears to be 45179.
Near as I can tell, the shorter arm has 20810A on it, though I'm not sure I'm reading it correctly.

Let me know if more pics would help.

Thanks,

Tom
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
March 16, 2016
Hey, Tom. This reminds me of our 39-031 and 39-032. However, I would carefully compare your dimensions to ours to confirm that these are correct.
A quick learner says:
March 16, 2016
Thanks, Tom.
The dimensions match up, so that seems to be the case. Thanks for your help !
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-031
$29.70
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-032
$29.70
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