24" replacement balance springs needed

Hello,

Your last three photos came through a bit blurry but it looks like both of your end fittings have wings for stabilization. If so, you could have either an S380-24 or S385-24 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need to locate the stamp code on your metal channel to choose the corresponding strength option. 

Thank you and let us know if you have any other questions or concerns.

Comparison of the S378, S380 and S385 balance shoes.