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replacement part

A quick learner from Westerville, OH says:
I have an Acorn window that needs new spiral tilt window balance, it is a 3/8-inch shaft, 28
User submitted photos of a window balance.
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Paul from SWISCO responded:
Thanks for posting. I recommend looking at our S900-28 spiral balance, this appears to match your specifications.
A quick learner from Westerville, OH says:
Some of my original message got cut off: I have an Acorn window that needs new spiral tilt window balance, it is a 3/8-inch shaft, 28 1/2" in length. Will i be able to use a 28" or 29" or have custom length made?
Thanks
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Tom from SWISCO responded:
Thanks for clarifying! In that case, I think you'll be okay bumping it up to S900-29. Some older window manufacturers used to design their spiral balances on the 1/2", but that style has been phased out. Modern balances are all made on the inch. When encountering the old 1/2" balances, we find that rounding up to the next inch is the best way to go.
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