Half inch window balance

Hi there!

Thank you for reaching out to us. Take a look at the Series 351 and Series 390. The S351 has a 1" deep shoe and the S390 has a 1-1/8" deep shoe. You'll have to measure as shown below to determine the best match.

The metal channel should measure 28" long. Your old stamp may translate to the 2820 stamp option; a pair of balances with this stamp will support a sash weighing 12 to 16 pounds. You can weigh the window sash on a scale to confirm the weight falls within this range. 

Let us know if you have any questions!

Comparison of the S351 and S390 balance shoes.