Prime-Line H 3579 Wood Window Sash Balance, Steel

This sash balance style has been used by a variety of manufacturers of windows for a variety of decades. It fits a 3-1/4 inch by 6-3/8 inch pocket that has been mortised about 2 inch above the centerline of the window frame.

Highlights:

• Material : Steel
• Used on wood, single or double hung windows
• Coil spring retraction
• Steel construction with steel cables
• Aircraft cable lifters
• Maximum weight rating of 8 lbs. each
• Requires a 3-1/4 inch x 6-3/8 inch opening to install
• Used by Superior, Preset, Fabco and a variety of wood window sash balance manufacturers
• It features an all steel construction, with a coil spring inside that retracts aircraft cable lifters as it offsets the weight of the window (vent)
• If your windows (sashes), are having problems staying up when opened, it may be that your sash balances or hardware needs to be replaced
• The sash balances hold the weight of the window pane, over time, the springs can wear out or fail
• Replace your sash balance for a smoother operation of your window and allow fresh air to enter your home with a window that stays open