need to find this model

A quick learner from Queens, NY says:
I believe Ive gotten these from you guys a few years back but just couldnt remember which it was on the site. Please send me the correct link for purchase.

Thank you!
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Emily from SWISCO responded:

Hello!

It looks like you have either our 39-253LB & 39-253RB or our 39-438B & 39-439B . The video below will help you choose the correct replacement. 

If you have any further questions just let us know.

How to Orient a Dual-Arm Operator
How to Orient a Dual-Arm Operator
VIDEO
WATCH >
Comparing the 39-253LB & 39-438B Operators
Comparing the 39-253LB & 39-438B Operators
VIDEO
WATCH >
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
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