Window Balancer
Home Owner
Feb 8, 2026 6:34 pm
Need help identifying series to order. Current is a BSI 2920. Please see attached for photos. Thank you
5 user uploaded images
2 Replies
Jasmine from SWISCO
Feb 9, 2026 12:32 pm
Thanks for your post! This window balance can be replaced with either the S380-30 or the S385-30. To determine which of these is the series you need, you'll need to confirm the depth of your bottom shoe.
Our 2920 stamp will support a sash weighing 12 to 16lbs.
Comparison of the S378, S380 and S385 balance shoes.
Related Products
Related Videos
Related Guides