Andersen Sash Balance, 519, 523, 525, 527, 531
Product Code: 24-531
Andersen Perma-Shield Narroline double-hung window sash counter balance. Sold individually. Can be used to replace balance boxes with the following stamped numbers: 519, 523, 525, 527, or 531.
Balances are sold individually, however, it is a good idea to replace both window balances at the same time. Pairing a new balance with an old one would cause the new balance to wear out faster.
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