double non swing window i cannot identity a replacement. It is 30 in long. No number on anything to identify
1/2 inch wide 30 inch long
Casey from SWISCO responded:
July 30, 2020
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 to choose a spring strength option based on the stamp on your metal balance channel. Thank you and let us know if you have any other questions or concerns. Comparison of the S380 and S385 balance shoes.
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