Dash balance for a small Anderson double hung window that measures approx 25"w x 33"h

A home owner from Mastic NY says:
Unable to identify the correct sash balance for my windows.
Andersen Balance
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Tom from SWISCO responded:
See that stamp "419"? Hard to tell, but that's the one that matters. Andersen balances marked 419 can be replaced with our 24-431 balance. Let me know if you need any more info.
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