This series 700 channel balance also known as a block and tackle balance has a 13" long metal channel and is for a non tilt window. The channel's width measures 9/16" but is considered 1/2" in the trade. This balance comes fully assembled with a 15-008 shoe and a 19-001 top attached.
|Stamp Option ||Sash Weight Range|
|1210 ||3 to 6 lb |
|1220 ||6 to 9 lb |
|1230 ||9 to 11 lb |
*This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.