Window balance spring
Home Owner from Seattle
Jun 22, 2021 8:48 pm
Metal channel is 27" long, 1/2" wide. Marked 26-4 K. No marking on the plastic parts on the ends. Those are the parts I am unsure of.
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2 Replies
Emily from SWISCO
Jun 24, 2021 3:29 pm
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 a spring strength option of 2640.
If you have any further questions just let us know!
Comparison of the S378, S380 and S385 balance shoes.