spiral balances for Better-Bilt

Question

I need to replace some spiral balances in Better-Bilt aluminum windows (tilt), circa 1995. Looking for guidance on which balance will work. These are 28" length but no color on the tip but the cam on the shoe is blue. It's a heavy window, with the sash measuring 45"W X 30"H. Without the vinyl cover, the tube measures just over 3/8".
Also, would it better to leave the vinyl cover off the balance? Wondering if the window may operate better without.

Casey · Accepted Answer

Hello,

It sounds like you may need our 5/8" diameter S600-28 spiral balance. Older spiral balances like yours determine the diameter with the plastic cover, so you most likely have the thicker balance. Modern balances do not have the same plastic cover, so you won't have to worry about that in the future. If there is no tip color, you'll need to weigh your sash and follow the chart under the S600-28 product description.

If you need new pivot shoes as well, take a look at our 15-173 and see how the width and thickness compare to yours. Thank you!