Vertical window balance replacement

Quick Learner from Chula Vista, Ca
Jul 9, 2021 6:35 pm
Metal part measures 34'. There is a number on it "3330".
5 user uploaded images
4 Replies

Casey from SWISCO
Jul 14, 2021 8:47 am


Hello,
I can't be sure but I suspect that your top attachments may have wings, which would indicate that you need the S395-34 balance with a 3330 option. If you're unsure, feel free to send us a photo of the top fitting to confirm. Thank you!

Quick Learner from Chula Vista, Ca
Jul 14, 2021 3:52 pm
Took pictures of both ends. Thank you.
4 user uploaded images

Casey from SWISCO
Jul 15, 2021 8:33 am


Hello,
I stand corrected, it looks like you have either our S351-34, with a 15-002 bottom attachment, or S390-34, 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 3330 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.
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