windows channel balance

Home Owner from cupertino, California
See attached images.
The marking is 20 4 B0 CALDWELL
User submitted photo of channel balance.
2 Replies
Tom
Tom from SWISCO
SWISCO
Expert
Thanks for posting your photos.

It appears you have the S385-21 (option 2040) Channel Balance. Please take a look and compare it to your original.
Reply to Thread
Current Photos:
Related Products
Related Videos
Related Guides