What Series 29" balance

Question

In the pictures is a 29" channel balance. I have a few different sizes I need for a client but they are all the same type of window. I'm not sure which series these belong to so I can order the sets needed. Thank you for your help!

Casey · Accepted Answer

Hello,

It looks like you have either our S351-29, with a 15-002 bottom attachment, or S390-29, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. It looks like your balance has a 2830 stamp code, but it is only partially visible in your photo. If so, you'll also need a 2830 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.