Series 385 Channel Balances

This is the SWISCO Series 385 Side-load Channel Balance Sash Support System (also known as a block and tackle balance) for non-tilt windows. The series is determined by the combination of the top and bottom fittings attached to the metal channel. When determining length, only measure the metal channel; do not include the fittings in this measurement.

The metal channel's width is 9/16", but is considered 1/2" in the trade. It houses a spring and pulley system to raise and lower the sash and comes fully assembled with a winged 19-005 top guide and a winged 15-004 (1-3/32"deep) bottom shoe.

Please note that the Series 385 closely resembles the Series 380 channel balance, but they are not the same. The difference lies in the depth of the shoe: unlike the Series 385, the Series 380 balance has a 15-005 (1" deep) bottom shoe.