30" channel balance 2950 weight range and top sash guide

Hello!

With this combination of attachments, you could have either an S380-30 or S385-30 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need a 2950 stamp option. As for the sash guide, take a look at our 18-161 and see if our dimensions match up to yours. If your bottom fitting indeed measures as 7/8", like the 15-029, let us know and we can go from there.

Comparison of the S378, S380 and S385 balance shoes.