Andersen sash Balancer

A home owner from Bettendorf, Iowa says:
Window sash size is 32 1/2 high by 22 wide. Window made in 1986 or 87. Need two balancers. Can you advise? Thanks.
stamped number is 11600-3 on one side and 11600-17 on the other.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Sure! Based on your stamp of "9#27," we recommend our 24-939 replacement Andersen sash balance.
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