Picking out a spiral balance

A home owner from Erma, NJ says:
May 11, 2020
I have a mobile home. The spiral balance has an orange cap, the gray cylinder is 26" long, and the diameter is 1.5" (not including the white metal sheath it sits in.)

Which one should I order?
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A home owner from Erma, NJ says:
May 11, 2020
I forgot to tell you, it's a tilt window, double hung.
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Tom from SWISCO responded:
May 13, 2020

Can you confirm the diameter of the outer tube? I've never known any balance made that is 1-1/2" in diameter. That's huge.

I think it will be closer to 3/8". If I'm right, then you want our S900-26.
A home owner from Erma, NJ says:
May 13, 2020
Thanks, I'll re-measure.
26" Series 900 Spiral Balance
26" Series 900 Spiral Balance
S900-26
$8.95
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