looking for window channel balances 19-d-40 size

A quick learner from japan says:
to whom it may concern,
we are looking for window channel balances 19-d-40 size ...we just want to know what size of window channel balances we can use , we need suggestion please....
Profile picture of Tom
Tom from SWISCO responded:
I see you were looking at our S765-20. Is this what you have? If so, 19-d-40 is not a stamp that usually goes with this. If you are not sure what option to choose, you will need to weigh your sash on a scale and refer to the S765-20 store page.

If the S765-20 is not what you have, or if you aren't sure, we will need pictures of your balance to confirm a better match.
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.