Product Description
Andersen Narroline double-hung window sash counter balance. Sold individually. Can be used to replace balance boxes with stamped numbers L12 1827. See SWISCO product code 24-R18-1027 for the right handed balance for this window.
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.
Guides