Balance inquiry

Hello,

At first glance, your balance resembles the (3/8") S900 or (5/8") S600 spiral balances for tilt windows. The determining factor would be the overall diameter of the white housing tube. I do see that you housing measures about 28-1/2" long but you may be able to use our 29" balances on both sides if that is the only difference. You'd also need to weigh your sash to determine which option you'll need. There is a chart on the product page that explains how to choose your color option based on the sash weight.

If there are any numbers stamped on the housing tube, please show us to confirm if you can use our stock balances or if they might need to be custom ordered. Thank you!