Home Owner from Thousand Oaks, CA
Jun 28, 2021 7:50 pm
Markings on sash balance: 1820 B.S.I. V
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2 Replies
Hello there,
You didn't give dimensions, but being in California, you probably need the S385-19 side load balance with a spring strength option of 1820. Compare our dimensions to yours and see if they match up.