Channel balance replacement

Question

The left balance dropped down, right side is ok, I think it is time to replacce them. If I do replace, I would do both sides. Now I need to get exact parts number to match old one. THe window sash has dimension of 34 inch width, 24 inch high.

Tom · Accepted Answer

Thanks for your photos. Based on what I see here, you have either our Series 380, Series 385, or Series 378, 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.