Window balance

Hey there,

Thanks for writing in! Based on the description of your balance, it sounds like you'll need the S500-29. To determine the tip color you'll need to support your sash, you'll need to obtain the exact sash weight. A black tip balance can support a weight range between 31 to 40lbs. If your window weighs less than that range, the tension will be too strong for the sash.

There is a chart below the product description of the balance that lists the weight ranges each tip color can support.