Sash vs window

A handy person from Philadelphia says:
June 6, 2023
Hello, i want to order some replacement parts for my window and i wanted to know what the difference between the sash dyad crank and the window dyad crank? How do i know which one i need?
Thank you for your help!
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Lauren from SWISCO responded:
June 8, 2023

Hello, thank you for posting,

If you are referring to the 39-187 and 39-188 cranks compared to the 39-089 and 39-090 , the main difference is the style of arm. The arm has a different zig zag shape. To confirm which one that you need, please provide pictures of your original for us to review to move forward. Thank you! 

A handy person from Philadelphia says:
June 8, 2023
Thank you for your response. Attached is a photo of my old crank.
Thumbnail of the uploaded file named IMG_2917.jpeg
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Lauren from SWISCO responded:
June 9, 2023

Thank you for the additional picture,

Your operator design resembles the 39-089 and 39-090 . Please review the overall dimensions to confirm a good fit! Let us know if you have any additional questions. 

Window Dyad Crank, 5"
Window Dyad Crank, 5"
39-089
$37.59
Window Dyad Crank, 5"
Window Dyad Crank, 5"
39-090
$37.59
Connecting a casement window operator to stud bracket
Connecting a casement window operator to stud bracket
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Anatomy of a casement window
Anatomy of a casement window
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