Block and tackle window balance replacement

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Home Owner from Seattle

Jun 8, 2023 1:40 pm

I am not sure what I should order to replace my Window balance.
Has 2740R BSI stamped on it.

3 user uploaded images

2 Replies

Tom from SWISCO

Jun 8, 2023 2:38 pm

Thanks for your photos. Based on what I see here, you have either our S380-28 or S385-28, depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

Comparison of the S378, S380 and S385 balance shoes.