Window Spring replacement

Question

I have three windows in which the spring mechanisms have failed.  I'd like to replace them so I would need 6 total spring assemblies.  I've enclosed photos.  The length of the metal portion not including tabs is 33 inches.  Thank you.

Casey · Accepted Answer

Hello,

It looks like you have either our S351-33, with a 15-002 bottom attachment, or S390-33, 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 3250 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.