Channel Balance for Milestone Single Hung Series 2000

A from Fort Myers says:
September 25, 2017
Hello, I am looking for replacement balances for my Milestone Single Hung Series 2000 windows. The balance I removed from the window is stamped with 27E but it seems to measure 28 inches long. Can you help me figure out which replacement balance I need? The series 770 appears to be the correct style, but I don't know if I should get a 27E or a 28E. Thanks!
A home owner from Fort Myers says:
September 25, 2017
Here are the pictures
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
September 29, 2017
Thanks for reaching out to us. I believe we can help you with this. First, I would like to start by informing you that the company that made your balance has gone out of business. Because I couldn't see the clip at end of the cord, I can't confirm you have the Series 770 channel balance . However, if you happen to be absolutely certain, then you may want to go with our S770-28 channel balance with a 28E option.
28" Series 770 Balance
28" Series 770 Balance
S770-28
$12.70
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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