Need longer spiral on Series 200 balance

A home owner from Slidell says:
November 20, 2014
I purchased 2 23" Series 200 Spiral Balances. The spiral on the old ones are 1 1/2 " longer than the new ones. Everything else is the same. Can you help identify the part I need? Thank you
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Paul from SWISCO responded:
November 21, 2014
I see you also purchased our 17-018 and 17-019. Did you read their descriptions before you ordered? These sash clips are meant to go with our Series 303 spiral balance, not our Series 200. I believe that's what you needed.
A home owner from Slidell says:
November 26, 2014
The problem is the spiral inside the tube is approx. 1 1/2" longer on original balance than on the replacement balance I received from you. The spiral in the tube I received from you is 1 1/2" short. I am attaching pictures.
User submitted photos of a window balance.
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Paul from SWISCO responded:
November 26, 2014
Yes, the inner spiral of the Series 303 is longer, as well. For the S303-23 specifically, the inner spiral has a total length of 26-5/8". Does that match your original?
23" Series 200 Spiral Balance
23" Series 200 Spiral Balance
S200-23
$12.74
RH Bottom Sash Clip, Keller
RH Bottom Sash Clip, Keller
17-018
$0.97
LH Bottom Sash Clip, Keller
LH Bottom Sash Clip, Keller
17-019
$0.97
23" Keller Spiral Balance Assembly
23" Keller Spiral Balance Assembly
S303-23
$16.78
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