Casement window operator

A handy person says:
August 15, 2020
I bought these windows about 12 yrs ago. Unfortunately, I can't find the brand or the serial numbers. These are probably some generic windows from China. Is there a way to match with any of yours. The smaller arm is 9 1/2 inch and the larger is 13 1/2 inches. Thanks. Feel free to call me at (917) 406-6560 if that's easier with any questions
Thumbnail of the uploaded file named E0C42210-DD68-4A8F-95BD-48DB4A12A9DE.jpeg
Profile picture of Bob
Bob from SWISCO responded:
August 19, 2020

See our 39-399 and 39-413 Operators. These use a crank handle like the 39-114L, sold separately. Take a look and see if they match what you need. 
Roto Single Arm Operator, 13-1/2"
Roto Single Arm Operator, 13-1/2"
39-399
$33.49
Offset Single Arm Operator, 9-1/2
Offset Single Arm Operator, 9-1/2
39-413
$27.20
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
SWISCO Window Operator Crank Handles
SWISCO Window Operator Crank Handles
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.