trying to find this spiral balance

A quick learner from Bixby, OK says:
I have 3 windows, aluminum, non tilt, single hung, that need new spiral balancers and brackets. I believe I need the S500-28 and the 17-007 bracket. The balance is 28" long with the red tip and a 5/8" dia. The bracket is 3/8" W and 2 7/8" long. Please let me know the correct part numbers I would need. I also would need the Charging tool. thanks.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
I think you're right on the money. Our S500-28 balance and 17-007 bracket are good matches. Just double check to make sure all the dimensions match. As for the charging tool, check out our 75-005.
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