I need to replace Sach and shoe labeled 28C NL BSI. What parts should I get?
Thanks.
Window Sach and shoe
Quick Learner from Lawrenceville, Georgia
Mar 15, 2026 3:13 pm
4 Replies
Emily from SWISCO
Mar 19, 2026 1:25 pm
Hi there!
Thank you for reaching out to us. We're happy to look into this, but we'll need more information. Can you remove the balance assembly and the shoe from the window and show us some photos?
Quick Learner from Lawrenceville, Georgia
Jun 12, 2026 8:48 pm
Thank you very much. Finally got the upload icon to work. Attached are the pictures.
5 user uploaded images
Emily from SWISCO
Jun 15, 2026 7:48 am
Thank you kindly for the photos! I recommend you have a look at the S775-28 with the 28C stamp option. You will also need to measure the shoe as shown below to determine whether it's 1" or 1-1/8" wide.
Please let us know if you have any questions!
Close up view of the bottom of the Series 775 sash support balance.
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