Series 370 Channel Balances

This is the SWISCO Series 370 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 19-004 top guide and a non-winged 15-002 (1" deep) bottom shoe.
Series 370 Channel Balances
Choose a balance below
13" 14" 15" 16" 17"
18" 19" 20" 21" 22"
23" 24" 25" 26" 27"
28" 29" 30" 31" 32"
33" 34" 35" 36" 37"
38" 39"
click here for lengths over 39"