Tom from SWISCO responded:
August 11, 2015
Can you show us a few pictures of your spiral balance? I know of only one type of spiral balance that has a 1/2" tube diameter, but it is very special and used for heavy commercial windows. I don't think that is what you have, but show us some pictures just in case.
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Tom from SWISCO responded:
August 18, 2015
Thank you! That picture is perfect. This balance is not the special kind I was thinking of. I am certain that the outer tube diameter will be either 3/8" or 5/8" (it may also be 9/16", but that is considered 5/8" in the trade). Please double check your measurement to be sure.
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Tom from SWISCO responded:
August 21, 2015
In that case, see our S600-19 spiral balance. You can find all pricing on its store page.
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