Need springs

Question

The numbers are worn off these balance springs it's a small bathroom window the metal rail of the spring measures 15 in not including the plastic parts on each end so what part number do you think I would be safe with thanks John

Tom · Accepted Answer

Thanks for your photos. Based on what I see here, you have either our S380-15 or S385-15, 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.