Window spring

Question

Measurement, 13 inches, metal to metal
Looking for 2.
The spring says 12.5
I need two

Casey · Accepted Answer

Hello,

It looks like you have either our S351-13, with a 15-002 bottom attachment, or S390-13, 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 1250 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.