Replace window opening mechanism

Home Owner from Salt Lake City
Hi, I have attached the picture of my window mechanism. Can you guys tell which one I need? I believe I need the model 39-253LB but wanted to double check before submitting the order.

Thanks!
Simone
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Lauren
Lauren from SWISCO
SWISCO
Expert

Hi Simone, thank you for posting,

Your operator resembles either the 39-253LB that uses the 39-529 detachable track slider or the 39-438B operator with a connected guide. Both are compatible with the 39-451 or 39-375 cover and handle depending on style preference. 

Please review the video below for more details and let us know if you have any additional questions! 

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