Window operaor for very old Pella window that had a removable second window panel

A landlord from Manhattan Beach, CA says:
February 2, 2022
I need a couple of these operators. There was a second picture I couldn't figure out how to upload of a strut on the other end of the window to guide the window as it is cranked
Thumbnail of the uploaded file named IMG_1624.JPG
Profile picture of Lauren
Lauren from SWISCO responded:
February 3, 2022

Hello, thank you for posting! 

Start by reviewing the dimensions of the 39-175 and 39-176 Pella operators. Please let me know if you have any additional questions. 

Dimensions for 39-175
Dimensions for 39-175
View of the arm of the 39-175 window operator.
View of the arm of the 39-175 window operator.
Sash Crank Operator, Pella
Sash Crank Operator, Pella
39-175
$241.70
Sash Crank Operator, Pella
Sash Crank Operator, Pella
39-176
$241.70
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
How to identify casement and awning operators
How to identify casement and awning operators
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.