Need help finding this Window Balance

A home owner from San Diego says:
August 4, 2020
Hi Swisco team, I need help finding this part. I need the complete window balance so it's ready to install. The total length is 31 inches. Width is 9/16" and height is 11/16". Please see pictures I need 6 of them. There is a stamping that says "30 3BSI" on one of the pictures. Thank you.
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Casey from SWISCO responded:
August 7, 2020

Hello,

With this combination of attachments, you could have either an S380-31 or S385-31 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 3030 spring strength option for your replacement balances. 

Thank you and let us know if you have any other questions or concerns.


Comparison of the S380 and S385 balance shoes.
Comparison of the S380 and S385 balance shoes.
A home owner from San Diego says:
August 7, 2020
Thank you so much! I will be ordering from you today!
31" Series 380 Channel Balance
31" Series 380 Channel Balance
S380-31
$11.30
31" Series 385 Channel Balance
31" Series 385 Channel Balance
S385-31
$11.30
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