Spiral balance part

A quick learner from Minneapolis, MN says:
April 16, 2019
I am not sure what this part is called. The 9/16" spiral balance slides through the center hole. We think it is a Wellington vinyl double hung that is about 20 years old.
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Bob from SWISCO responded:
April 17, 2019

Thanks for writing in. See our 26-139 Single Hole Aligner. This is not exactly the same as your old part, but look over the dimensions and see if you think this could work for you.
Single Hole Aligner
Single Hole Aligner
26-139
$0.97
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