SWISCO - The Replacement Hardware Authority

Need Andersen Permashield Narroline window balances

A home owner from Wallingford, CT says:
My house was built in 1978/1979 with Andersen Permashield Narroline windows, #2842 & #2032.

The markings on the old balances are:
(for 2842) D67 7#27 9-78
(for 2032) B46 4#19 10-78

What replacement balances do I need?

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Tom from SWISCO responded:
Thanks for posting! First, I'd recommend the 24-737 Andersen sash balance, which can replace balance boxes marked with 7#27. For the other balance, I'd recommend our 24-431, which can replace boxes stamped with 4#19.
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