Spiral balance Selection - Help Needed

Question

I have several very heavy 2004 era PGT Winguard Windows, vinyl, single hung, tilt-in sash, with hurricane impact glass. They have one 3/8" and one 9/16" spiral balance on each side. The tube length is 33" on all of them. There is no tip remaining of the 3/8" balancers except for maybe some yellowish color on the 3/8" balancer supporting the heavier window noted below.

The tips on most of the 9/16" balances that still have tips remaining look to be red in color.

Sash Weights:

The smaller window is 44 pounds

The larger window is 54 pounds.

Please advise on what's the optimum combinations of balancers I need for these two windows.

Thanks!

Chuck

Emily · Accepted Answer

Thanks for reaching out to us, Chuck. We've never heard of a 3/8" and 9/16" balance being used in tandem applications before. That's pretty weird. Do you have enough room to use two 9/16" diameter balances? If so, two S600-33 with red tip options would be my pick for both sashes.

We like to keep things as symmetrical as possible when it comes to balances. Mixing and matching hardware is always a recipe for disaster.