Single Hung Window Balances

Home Owner from Blaine, WA
Oct 15, 2022 6:13 pm
Need 4 single hung (2 windows) 33 inch x 1/2 inch balancers with ID BSI 3240 (backwards E). From BSI website top and bottom look like 3240-3 (60-508 top and 60-503 bot). attached photos of top and bottom.
5 user uploaded images
2 Replies

Tom from SWISCO
Oct 20, 2022 3:03 pm


Thanks for your photos. Based on what I see here, you have either our S380-33 or S385-33, depending on the depth of the bottom shoe. That's the only difference between them, though I can't quite tell what your precise measurement is from your photos. I recommend referring to our dimensions to confirm the best match.

Comparison of the S378, S380 and S385 balance shoes.
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