Trying to ID replacement balances

Hey Ben. I'm sure we can help, but I need a closer picture of the bottom nylon attachment, in addition to the top. The combination of attachments determine the exact channel balance you need. We should be able to narrow this down for you from there. 

Hello there! Bob isn't here today but I'll do my best to advise you.

Looking at these photos, I believe your balance is going to be a match either our S351-29 or S390-29,  depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match. The diagram below will go into more detail.

Looking at your first batch of photos, I also can't help but notice that your window is missing a top sash guide. This is a plastic cap that goes on the top two corners of the sash and keeps the balance in place. If you were to replace your balance today, but not the top sash guide, then there would be nothing holding your balance down. This will have to be addressed before you go any further.

I'll share a video at the end of this post that will go into more detail as to the issue I've described. You can see our full list of top sash guides here. You'll need an old one to use as a reference to find a good match.

Comparison of the S351 and S390 balance shoes.

Hello again, Ben. If the shoe depth is between the Series 351 and Series 390, go with the Series 390. Most likely the shoe just wore down from age. So long as the depth is greater than 1", the Series 390 is the most appropriate choice. 

Good question about the balances. Basically, in most cases only a certain portion of the stamp code is important--in this case, that 2830 bit. The other digits and letters are usually just manufacturing info not relevant for the replacement balance. Hope this makes sense. 

Let us know if you have any other questions, especially regarding those Top Sash Guides Tom noted.