This non-tilt spiral balance is constructed of a mill-finished metal tube measuring 9/16 in. in diameter. The FJ series spiral balance features 2 available rod extensions; one measures 3/4 in. and the other 1-3/4 in. The colored nylon bushings of these non-tilt spiral balances indicate their spring and sash weight for which the balances were designed: white = standard; red = medium and blue or black = heavy. These spiral balances are used on non-tilting vinyl single hung windows.
- Heavy spring weight of this spiral balance is denoted by its blue-colored nylon bushing
- Tube dimensions of this balance measures 9/16 in. in diameter by 30 in. in length
- Spiral balances are sold separately
- These spiral balances are used on non-tilting vinyl single hung windows