Channel balance

Question

Trying to figure out what series balance this is?  The window I'm working on, only has this balance. I'm looking for the part number for this balance and clip for this window.

Casey · Accepted Answer

Hello,

It looks like you have either our S351-28, with a 15-002 bottom attachment, or S390-28, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need a 2720 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.