1/2 inch balance for Atruim windows of az.

Thanks for reaching out to us. We can help with this. Before we recommend anything, we would like to see an image of the inside of the balance’s metal channel, where the innerspring connects to the pulley mechanism; this connection is located in the middle of the channel.

Perfect, thank you! Based on your photos, I recommend the S395-35 with the 3440 stamp option. This comes attached with the winged 19-005 top fitting and wingless 15-001 1-1/8" deep shoe. Take a look and let me know if you have any questions.