spiral balances

A quick learner from Mansfield Center says:
I'm replacing balances on windows installed in the early 1970s. They are 5/8" diameter and the tube is 20" long. The choices I have are red and blue for the tip, but it looks clear/white to me. Is there a white tip choice for the S500-20?
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Paul from SWISCO responded:

There is actually not a white tip option for our S500-20 spiral balances. We have known the white tip to be very lite duty. We suggest to our customers to start with the red tip that works for sashes weighing between 6-19 lbs. Let us know how that works for you. 

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