Window Balance

A quick learner from Charleston W.V. says:
August 30, 2017
I have a window balance that I am unfamiliar with and trying to locate. It is stamped 28DBSI tr. The channel is 28 inches long 9/16 wide 1/2 inch deep
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Tom from SWISCO responded:
August 30, 2017
Welcome to SWISCO. Sounds like a channel balance, but we'd like to check. Can you send photos showing both ends of the balance?
22" Series 770 Balance
22" Series 770 Balance
S770-22
$12.27
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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