If you guys can help identify what I need. I'll be happy to purchase it from you. Thank you so much for the all the videos. They made it so easy
The metal is 27" long
1989 Milgard window hardware.
![](themes/genesis/branches/production/public/images/discussions/avatar-default.webp)
Home Owner from These are part of my front window
Mar 19, 2023 6:14 pm
5 user uploaded images
2 Replies
![Casey](/swiscoCom/customerDiscussions/images/companyProfiles/16.png)
Casey from SWISCO
Mar 20, 2023 3:03 pm
![SWISCO](themes/genesis/branches/production/public/images/discussions/swisco-badge.webp)
![Expert](themes/genesis/branches/production/public/images/discussions/expert-badge.webp)
Hello,
It looks like you have either our S351-27, with a 15-002 bottom attachment, or S390-27, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need.
There should be a stamp code on your metal balance channel that you will need to choose the corresponding spring strength option for your replacement balances. There is a chart on the product page that explains how to choose your option based on the sash weight. Thank you!
![Comparison of the S351 and S390 balance shoes.](/images/CatImg/A00/B00/8/8-FT.jpg)
Comparison of the S351 and S390 balance shoes.
Related Products
Related Videos
Related Guides