This non-tilt spiral balance is constructed of a mill-finished metal tube measuring 3/8 in. in diameter. The FM series spiral balance features a rod extension that measures 5/8 in. in length. 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.
- Can be used on vinyl hung tilt windows
- Red colored nylon bushing indicates medium spring weight
- Adjustable weight range
- 29 in. length and 3/8 in. diameter
- Maximum weight rating is 25 lbs.
- Spiral balance clips are sold separately
- Prime-Line part H-3787 tilt balance tension tool can be ordered separately
- For further dimensional information, please see the line drawing
- Double check measurements before ordering















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