This non-tilt spiral balance is constructed of a mill-finished metal tube measuring 3/8 inch in diameter. The FM series spiral balance features 2 available rod extensions; one measures 5/8 inch and the other 1-5/8 inch The red-colored nylon bushings of these spiral tilt balances indicate their spring weight is for sash of medium weight. These spiral balances are used on non-tilting vinyl single hung windows.
Constructed of metal tubing, a nylon bushing and steel tensioning spring
Tubing comes in an unfinished, corrosion resistant, milled finish
Designed for use with vertical sliding, single hung and double hung windows that are equipped with spiral balances like these
Features 2 available rod extensions
Easy to install with only a few simple tools
Prime-Line part H 3787 tilt balance tension tool can be ordered separately
Please refer to the line art for dimensions and compare with your needs before ordering