Andersen Perma-Shield Narroline double-hung window sash counter balance. Sold individually. Can be used to replace balance boxes with the following stamped numbers: 1426 or 1427
Good Idea!
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.
Good Idea!
Guides
