SASH counter balancer narroline C22 5 23 272

A handy person from Monroe,New York says:
All the cords have snap on the counter balancers due to dye rot.I have the Counter balancer box out and the numbers stamped on box are C22 5 23 272 can you help me find a replace for this model??? The box is: 2 3/4" X 6 1/4". Thanks for any help you can give me
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Mike from SWISCO responded:
The correct balance replacement is the 24-531 Andersen Sash Balance.
A home owner from Danvers, MA says:
Need to replace sash balance for Narrowline window. Lower pane (glass) measures 28½ x 14. Broken sash balance has following P/N: B J9 5#23 with a date of 7-87. Housing part #'s are 11600-3 & 11600-7 (top & bottom, respectively. What balance is the proper replacement?
Thanks!
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Mike from SWISCO responded:
Take a look at the 24-531 Andersen Sash Balance.
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