Casey from SWISCO responded:
September 28, 2020
Hello, With this combination of attachments, you could have either an S380 or S385 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 to choose your spring strength options based on the stamp numbers you've provided. We've also related a few similar top sash guides for you to compare to yours. Review the dimensions to see if one of these options could work for you. As for the rubber stop you mentioned, we do not carry an exact replacement but you may be able to find the part at a local hardware store. Thank you! Comparison of the S380 and S385 balance shoes.
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