Window balance

Hi there!

Thanks for reaching out to us. I recommend the S380-30 or S385-30 channel balance. The best match will depend on the depth of the bottom shoe so you'll have to measure as shown below. 

The 38 stamp may indicate the sash weight but you can weigh yours to confirm. If it's 38 pounds, you can select the 2965 stamp option. A pair of balances with this stamp will support a sash weighing 35 to 39 pounds. 

Let us know if you have any questions!

Comparison of the S380 and S385 balance shoes.