coil balance assemblies

A quick learner from Durham,nc says:
October 7, 2017
Do the weights (5 lb., 8 lb., etc) refer to sash weight, and can I determine by simply weighing my sash?
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Paul from SWISCO responded:
October 12, 2017
That's right. You would weigh your sash, then divide it by two (for each balance). For example, I see you were looking at our S140-20. This is for 40 pound sashes, since each side carries 20 pounds.

Keep in mind this is unique to coil balances. Other balances aren't rated this way.
20 lb Series 140 Quick-Tilt, Dual
20 lb Series 140 Quick-Tilt, Dual
S140-20
$14.72
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